Scuba Diving Computer Philippines

The mid-range priced scuba diving computers may be beyond your budget. You may be looking for an affordable dive computer. This post lists some mid-range scuba diving computers but are now on sale, offering huge discounts.

Joe Diver America is offering huge discounts on different models of scuba diving computers. Below is a list of some of the scuba diving computer models on sale:



Aeris ATMOS elite scuba diving computer

Oceanic Veo 180 Wrist Dive Computer with Backlight & Audible Alarm
Retail : $399.95
Savings : 51 %
Discounted Price: $197.54

Oceanic Veo 180 Swiv Combo Computer Console
Retail : $499.95
Savings : 54 %
Discounted Price: $227.54

Dacor Darwin MC2 RGBM Dive Computer Console
Retail : $460.00
Savings : 38 %
Discounted Price: $284.31

Oceanic Veo 180 Swiv NavCon 3 Gauge Dive Computer Console with Compass
Retail : $569.95
Savings : 48 %
Discounted Price: $297.54

Aeris Manta Scuba Dive Watch - Scuba Dive Computer Watch
Retail : $429.95
Savings : 30 %
Discounted Price: $299.95

Oceanic Geo Scuba Dive Watch - Dive Computer Watch
Price: $299.95

Aeris ATMOS elite HOSELESS Wrist Dive Computer- Super Sale - Save $290!
Retail : $999.95
Savings : 38 %
Discounted Price: $623.97

To know more about this offer, please click here.

One of the previous posts presented Scubadivingsmiles.com's naming of a Suunto model as the best scuba diving computer for beginners. Scubadivingsmiles.com indeed features several useful reviews on scuba diving stuff, including scuba diving equipment, scuba diving gear, interesting dive sites, and especially, scuba diving computers.

Suunto Cobra scuba diving computer, "best mid-range dive computer"

Best Dive Computer: Mid-Range

For clarification, we have defined mid-range computers as ones with a price in the $400-$600 range.

I had my work cut out for me on this one as there are lots of contenders in this category. However, we had to pick a winner and we chose this Suunto model as the best dive computer in the mid-range category. It has gotten an overwhelming number of great reviews.

This is the only air-integrated dive computer with air, Nitrox, and gauge modes complete with profile memory on the market. It also displays cylinder pressure and estimated remaining air time.

Users rate it as having lots of functions, easy to operate, easy to read and reliable.

Some reviews of this computer, from customers of LP, include: "I have had two Suunto ski watches (I am a ski instructor) and they have functioned well beyond all expectations. When it came time to shop for a dive computer, Suunto started at the top of my list, and all the additional research I did confirmed their position.

The dive computer I decided on was a Cobra. The Cobra is a great computer both in function and versatility, as a recreational diver I should never out grow it capability.Suunto Cobra dive computer features: air integration, imperial and metric, programmable altitudes, nitrox and compressed air use, multiple fitness levels for safer diving, dive planning for maximum dive time, the ability to download dives into your computerized dive log, and so much more.

When I started to zero in on the Cobra, I thought it had too many bells and whistles? As I thought about it, I came to the conclusion this computer will grow with me as I grow as a diver. Every Dive Master I have worked with all have glowing praise for Suunto, and the Cobra is a very reliable unit."

"I am very pleased with this computer.I first saw it being used by the divemasters in Vanuatu while diving on the Coolidge. They were all happy with it. A friend recommended too and let me have a close took at his, then recommended Leisure Pro.

This computer is easy to use and also easy to flick between functions.It is great to be able to use the quick disconnect and sit down at the desk with just the computer to scroll through the dive history to fill in my log book. I look forward to getting to pc software kit to view my performances on the computer screen."

Source

To dive for...

Perhaps mere words in the reviews of the scuba diving computers are not enough for some divers. So here is a video of the "unboxing" of the Suunto D6 scuba diving computer for you to actually see its features. Enjoy!

The hoseless, air integrated, nitrox, Oceanic OC1 scuba diving computer

One of the previous posts mentioned the types of scuba diving computer according to how it is worn. Aside from this, a scuba diver also has to take into account these considerations in deciding which scuba diving computer best suits him: the nitrox dive computer, air integrated dive computer, hoseless dive computer. ScubaDivingSmiles.com sheds light on how a scuba diver decides on these points.

Nitrox Dive Computer or Not?

With nitrox diving becoming more and more common, so are computers that are nitrox compatible.

Even if you aren't diving with nitrox now, if you are even thinking of diving with nitrox in the future, it is probably worth it to purchase a nitrox dive computer. This will save you the expense of buying a whole new computer in the future.

However, if don't think you will ever dive with nitrox, then there is no reason to pay for this feature. A standard air computer is probably $100+ less than its nitrox counterpart.

All dive computers can dive with standard compressed air, but not all dive computers can dive with nitrox. Nitrox dive computers allow you to program the percentage of oxygen in your mix (standard compressed air is 21% oxygen).

A nitrox dive computer shows all the same information as air computers so it's ability to program various gas mixtures is it's distinguishing feature.

Air Integrated Dive Computer or Not?

Air integrated dive computers are becoming more commonplace. An air integrated computer measures the tank pressure (in addition to all the other information mentioned here) and then calculates how much more time you have left at the current rate of air consumpetion. air integrated dive computer

So if you are chasing that beautiful fish and you are running out of time, you might want to slow down and extend your dive. The air integrated dive computer will tell you how much time you can spend at any exertion level.

An air integrated scuba dive computer replaces the need for a submersible pressure gauge (SPG). One downside of an air integrated dive computer is that if it fails, you lose information on how much air you have left in your tank. Dive over.

Hoseless Dive Computer or Not?

When we get to the hoseless scuba dive computer, we are talking some real money here.

The hoseless dive computer consists of the receiver (typically worn on the wrist or mounted on the BC) and a transmitor. The transmitor attaches to the high pressure port of the scuba regulator first stage and then sends your air information, wirelessly, to the receiver. The receiver looks the same as normal dive computers.

This setup cuts down on the number of hoses you need. There are now even hoseless dive computers that can accept signal from muliple transmitors - so you can even keep an eye on your buddies air consumption. Of course, this capability is really for the more advanced technical divers who may use different tanks on one dive.

There is no right or wrong scuba dive computer. You just need to pick one that suits your needs and your are most comfortable with. Not to mention one that suits your pocketbook!

Source

SucbaDiving.com has been featured the evaluation of the latest scuba diving computers by ScubaLab. One scuba diving computer which was examined deeply was the Sherwood Wisdom2.

Sherwood Wisdom 2

Features
This updated DC boasts a new pair of chromed control buttons, increased battery life, double the memory capacity and a Deep Stop feature. It offers a large screen with big, bold digits that are compartmentalized for a clean look. Bar graphs track gas loading and fast ascents. An optional quick-disconnect fitting lets you separate the computer from the high-pressure hose. The Wisdom 2’s screen is outstanding. All critical data, with psi standing out, can be found on the main screen. The auto safety-stop feature that reminds you to make your stop in big, bold letters was a big hit among test divers.

Liberal or Conservative
Liberal. There are no conservatism settings.

Bottom Line
We like the big screen, easy-to-read digits and quick-disconnect. Recreational divers won’t find a more user-friendly data cruncher (the owner’s manual is the best).

Source

Deciding on the best scuba diving computer to buy can be compared to buying a car, can be tricky for new scuba divers, but may be relatively easy for the

veterans. The decision varies according to preference, budget, and the kind of diving a diver does. The last one will dictate the features that a scuba

diving computer buyer would need or want in his scuba diving computer.

Scuba Diving Smiles passes verdict on Suunto "Gekko" Air/Nitrox Wrist Computer as the best scuba diving computer for scuba diving newbies. The following
is its say about this Suunto scuba diving computer model.

If you don't have a lot of money to spend, you can still get a very good computer for a relatively cheap price. The one I have chosen as the top entry level

unit is another Suunto model. This is a wrist unit but it is also available in a console unit.

This models gets high marks for being easy to read and operate, reliability and having alot of functions. It can be used with both air and nitrox. It has

extensive memory to keep track of your dives and has a user replaceable battery which can save you money down the line.

Users reviews from include:

"After several weeks of research I chose this computer for it's features, price, and Suunto reputation. If you can figure out dive tables you can operate

this computer".

"Excellent product, easy to operate & read, the alarm sound is very loud. Keeps track of everything to include temperature in and out of the water, time

in/time out, great product."

Hopefully, these recommendations will make your search for the best scuba diving computer a little easier. Please let us know which computer you use and how

you like it. You can leave your scuba gear review here. Hey, you might even win a $50 gift card from Amazon.
Source

Console Scuba Diving Computer

The previous post mentioned of wrist scuba diving computer and mask scuba diving computer. Well, these are but two of the three types of scuba diving computer classified in terms of how it is worn or carried by the scuba diver. This post touches on the third type of scuba diving computer - the console dive computer.

While a wrist dive computer is strapped to the wrist and mask dive computer is worn on the face, the console dive computer is fastened to the scuba diving equipment itself using a hose. Another difference between a console dive computer and the wrist dive computer is that the console dive computer is usually complemented with a pressure gauge. Moreover, the display is typically larger on console scuba diving computers than on wrist scuba diving computers, making it easy to read for the scuba diver.

It is up to the scuba diver to choose the type of scuba diving computer to buy according to his ease of use, and the price range.

Aeris CompuMAsk HUD Scuba Diving Computer

As upgrade to the scuba diving technology, scuba diving computers are replacing divers' watches. This may explain why most scuba diving computers are designed like ordinary wristwatches. So far, the scuba diving computers I have mentioned in this blog are those which a scuba diver straps on his wrist, like a regualar wristwatch.

But an uncommon design of scuba diving computer is the Aeris CompuMask HUD. As the name hints, it is a scuba diving computer but worn as a mask rather than strapped on the wrist as most dive computers are worn. This being worn on the face saves the scuba diver the effort to raise his arm where an ordinary scuba diving computer would be strapped to read the display. This economy of movement comes in handy especially during emergency situations while underwater.

The following is a description of this unusual scuba diving computer and its features as listed by Adirondack Scuba (eScubaShop).

Aeris CompuMask HUD

In-Mask Air Integrated Dive Computer Technology. The CompuMask HUD Mask contains a miniature liquid crystal display (LCD) panel, proprietary in-mask Digital Optic System, microprocessor, depth transducer, wireless cylinder pressure receiver, diver replaceable battery, and controlling software. The Digital Optic System allows you to keep your eyes focused on the dive while presenting critical dive data including: current depth, elapsed dive time, cylinder pressure, and dive time remaining. The optical lens provides a clear, highly magnified image of the LCD, which is viewable regardless of environmental conditions and may be seen clearly by the vast majority of people, regardless of vision.

Hoseless air integrated technology

In-Mask Digital Optic System

Hoseless Air Integrated Technology

Patented Air Time Remaining Algorithm

Air, Nitrox, Gauge and Free Dive Modes

Audible and Visual Alarms with User Alarm Acknowledgment

Backlighting may be adjusted underwater for brightness as well as full-time or on demand use

Includes ACI PC Download and Settings Upload Software and USB cable

Diver-Replaceable Batteries

Safety stop count-down timer

To check out the price and buy the Aeris CompuMask HUD, please click here...

The Oceanic Vt3 Dive Computer

Another advanced dive computer is the Oceanic Vt3 scuba diving computer. It is the "first Free Diving Computer to calculate and track Nitrogen Tissue Loading," and has as a trademark the Buddy Pressure Check where this scuba diving computer can search for and show pressure on display of nearby transmitters (4-6 feet range). Below is a brief description by diversSupply.com about this scuba diving computer:

The Oceanic VT3 is a next generation dive computer featuring superior design and technology combined with Oceanics trademark ease of use and customization. Whether youre venturing into the unknown or gliding over a shallow reef, the VT3 achieves a remarkable balance between features and usability, allowing you to focus on what's important during the dive. With Oceanic's wireless transmitter, the diver can also monitor gas pressure from up to three independent cylinders ideal for both technical diving applications and recreational diving with our new Buddy Pressure Check feature. The Oceanic VT3 can be switched during the dive between up to three different Nitrox mixes containing 21-100% oxygen. Transmitter not included.

The following are the features of the Oceanic Vt3 dive computer:

Switch Between 3 Independent WirelessTransmitters

Buddy Pressure Check™

Advanced Free Dive Mode

Patented Air Time Remaining Algorithm

Full-Time Air Time Remaining Display

Dive Time Remaining

Turn-Around Pressure Alarm

Oversized Digits

Audible Alarms with Flashing LED Warning Light

Audible Alarm Acknowledgement™

Air, Nitrox or 100% Oxygen

Switch between 3 Nitrox Mixes, to 100% Oxygen

Oceanic Personal Dive Computer Algorithm

"The Ultimate Adjustable Algorithm"

No Deco Safety Stop Prompt with Adjustable Depth and Time

FastSetT User Interface

Date and Time Stamp

Alphanumeric Display

Automatic Altitude Compensation

Diver-Replaceable Batteries

Battery Hot Swap

24-Hour Fly Countdown and Calculated Desaturation Time

Depth-Dependent Ascent Rate

SmartGlo® Backlighting

24 Dive On-Unit Log Book

History Mode

OceanLog® PC Download and Settings Upload Interface

Gauge Mode

Split Set Mode Access

To read more about the specific benefits of the said features of the Oceanic Vt3 Dive computer, please click here...

World's First Upgradeable Scuba Diving Computer: the 2008 VR3 HD

A relatively new scuba diving computer considered as the Ultimate Dive Computer is available just this September at eScubaShop (Adirondack Scuba). What makes it ultimate is that it is the "World's First Upgradeable, First Full Color and Best-Selling Trimix and Closed Circuit capable Dive Computer" - the 2008 VR3 HD. Below are the new features of the Deltap-manufactured new dive computer detailed by eScubaShop:

*Outstanding screen visibility via a backlit white screen on all VR3s, both single and multi-colour units;
*PIN upgradeability from Single Colour to Multi Colour;
*Faster and more user-friendly screen navigation process;
*A new Mini-Screen Pre-dive Check feature;
*A revolutionary interactive Display Modes feature allowing the diver to choose which information is displayed on the dive screen
*A very user friendly new Dive Profile and Look Ahead Graphic feature on the Dive Screen
*A unique User-Customisable Dive Screen,
*Optional VPM based decompression algorithm upgrade
*Open & closed circuit options
*Reprogrammable
*10 gasses
*Air / Nitrox / Trimix / Heliox options
*Upgradeable
*Microbuble algorithm
*99 levels of decompression
*No lockouts
*Programmable safety factor
*Auto turn on, no wet contacts
*Adjustable backlight with contrast control
*60 hours of dive logging
*Infra red PC interface
*Tissue loading graphs
*Dive graphing replayable during and after dives
*Fixed or Variable ceiling decompression
*Total time to surface calculations
*Rebreather interface for on line decompression
*User replaceable AA battery
*1000 ft depth
*Personal security screen

Scuba diving computers may not become obsolete as fast as cellphones, computers and other popular gadgets of today. But an upgradeable scuba diving computer may be ideal especially for divers totally immersed into the scuba diving life and planning to visit the Underwater kingdom for long-term. In this way, the diver can keep the dive computer into good use for a longer time than the ordinary dive computers, and can even customize it according to his diving needs and preferences.

To check out the price, please click here...

UWATEC Aladin Tec 2G scuba diving computer

One of the scuba diving computers sold in lucasdivestore.com is the Uwatec Aladin Tec2 G. Below are details regarding this brand of scuba diving computer from lucasdivestore.com. Check if the features mentioned below satisfy the basic displays a scuba diving computer must have as mentioned in the last post. Discover also more information this scuba diving computer displays that you may find useful to your style of diving.

The TEC 2G is a clear example of relentless development at UWATEC. TEC 2G is an easy-to-use two-gas computer, which unique in its segment, offers a predictive multi-gas algorithm (PMG) shared only with Smart TEC and Galileo SOL. TEC 2G combines this sophisticated algorithm with the compact size and accessibility of the Aladin line.

Unique within the Aladin line, TEC 2G offers these specific features for technical divers who want total freedom in full safety as well as all the features of the other Aladin computers.

Gauge mode: operates as technical depth gauge to a depth of 120m with one-press stopwatch function. Unique in the diving industry, in this mode it displays a continuously updated average depth, which can be reset by the diver at any time.

Bookmark function during dive : highlight specific moments with a simple button press and add comments in the SmartTRAK profile later.

Altimeter: accurately measures altitude with a 15m resolution. The altitude alarm (patent pending) alerts the diver when approaching an altitude incompatible with saturation status due to a recent dive.

Algorithm

Bühlmann ZH-L8 ADT MB PMG (Adaptive Microbubble Predictive Multi-Gas). Aladin TEC 2G predictive multi-gas algorithm performs its decompression calculation taking into account all planned gas switches throughout the dive. This means that the decompression schedule shown on the display gives you the actual total time of ascent. In the background however the algorithm also calculates the decompression schedule for the currently active gas only, so that if you fail to switch to the "deco gas" at the planned depth, the computer can quickly revert to this calculation. You can look up the active gas calculation at any time at the press of a button.

Nitrox

Nitrox compatibility 21-100 percent. Oxygen concentration in 1 percent increments and diver adjustable partial pressure of oxygen (ppO2) 1.0 to 1.6bar

2-Gas switching function for decompression on higher oxygen Nitrox mixes. Decompression gas is preprogrammed by user prior to diving. User adjustable MOD within PPO2 limits and push button switching.

User adjustable time-reset function.

Functions, Buttons & Display

Full Watch Function. Features wake-up alarm, 12 or 24-hour mode, date and time zone shift for traveling divers.

Safety Stop Timer. User activated, it can be set between 1 and 5 minutes for optimal monitoring of your safety stop (default 3 minutes).

Active Backlight with Push-On / Push-Off Fuction

Bookmark Function During Dive. Highlight specific moments with a simple button press and add comments in the SmartTRAK profile later.

SmartTRAK Software to Download and Manage Dive Profiles. All settings can be changed either via a PC or on the dive computer itself, i.e. depth alarm, dive time alarm, safety stop duration, max ppo2, nitrox reset time, imperial or metric units, salt or fresh water, backlight duration, attention warnings on or off, water contacts on or off.

Toggle through Essential Information during Dive Mode. Max depth, temperature, time of day; set bookmarks and activate backlight; nitrogen bar with 6 segments gives graphical representation of tissue saturation.

Silent Option. All audible warnings and alarms can be deactivated (via safety code).

Desaturation Reset Function. Useful in dive schools or in rental facilities (Reset protected via safety code).

User Replaceable Battery with Sealed Battery Compartment. Protects the computer from improper handling and facilitates battery exchange.

Data Transfer & Memory

25 Hours of Profile Storage at 4-second Sampling Rate. Large memory holds more than a week’s worth of diving, high sampling rate preserves all details about the dives.

Infrared Technology. Wireless data transfer of dive profile information to PC, MAC or PDA via SmartTRAK, JTRAK or TravelTRAK software, respectively.

To check its price, please click here...

Suunto D9 Titanium Dive Computer

We are in the information age where relevant information in what we do is very vital above or under sea level. Under sea level, a scuba diving computer is a very useful diving device that provides a diver important information that aids in his decision-making while underwater. These information which can be accessed through the dive computer's display include 1) amount of time underwater, 2) maximum depth, 3) current depth, 4) safe time remaining at that depth, 5) no decompression time limits by depth for your next dive, and 6) alarm or signal (most computers have this) either audibly or visually if your ascent is too fast or if you need to stop for decompression.

A lot of basic scuba diving computers also display surface interval time, time to fly (or how long you need to wait before flying, and water temperature. While other scuba diving computers may tell additional information other than those mentioned, these information vary from one scuba diving computer to another. The diver, thus, has to decide on which details of information are more important to him, and which he can disregard, depending on the type of dive he does, before buying a scuba diving computer.

In choosing which scuba diving computer to buy, scuba-diving-smiles.com listed the following for a scuba diver to consider:

* How much money do you want to spend?

* What information does the computer display (basic display information is listed above)?

* Does the computer automatically turn itself on and off? If you are the forgetful type, this is a nice feature. My computer doesn't and once I had to come back to the surface after starting my descent to turn it on. Luckily, I was only a few feet down. This is now one of our (my husband and I) standard pre-dive check questions.

* What type/style of computer do you want? Wristwatch style, console, hose mount or clip-on?

* Can you easily read the information? And understand the display? Are the buttons easy to use, especially if you typically wear gloves while diving?

* How many dives does the computer log? The last 10 dives seems to be typical. Ours is an older model and only keeps track of our last dive so we have to write the information down if we do more than 2 dives a day. It's fine for us but it would drive some people crazy.

* Does the computer keep track of your dives if you have to change the battery in a middle of a dive trip? Or will you have to stay out of the water for 24 hours if the battery fails? More important if you take a number of dive trips per year or frequently do multi dives per day.

* Is the computer backlit? Especially important if you do night diving, cave diving, wreck diving, etc.

* Do you want an air integrated computer? If so, do you want it on a hose or would you prefer a wireless setup?

* Do you want Nitrox capabilities (or think you may want it sometime in the future?) Even if you don't dive with nitrox now, if you think you might want to in the future, you probably should buy a dive computer with this capability. It doesn't add a whole lot to the cost and it could save you money in the future.

* What type of battery does it use? Can you change the battery or does it have to be sent back to the manufacturer? How long does the battery typically last? See our page on dive computer batteries for more information.

* What type of algorithm does the computer use to calculate decompression? Is this conservative or liberal?

* Do you want to be able to upload your dive information to a PC? Do you have to purchase a separate item to utilize this feature? While this is becoming a more commonplace feature, not all scuba dive computers have this capability so be sure to check.

* Is it good for altitude diving (if you plan on this type of diving)?

* What type of warranty does the dive computer have? Is there someone local that can service it?

These are some of the things to consider before choosing scuba dive computers. It can be a sizable investment so you want to make sure the dive computer you buy is the best one for you. After all, if you are not going to use all the capabilities (such as uploading to a PC) there is no sense in paying for them. A little time spent now can pay off big in the future.

To learn more about types and styles of dive computers please click here.

Scuba diving computer and more time underwater

If you dive with a computer, you will be able to enjoy more time underwater than if you were diving just with tables. With dive tables, the table assumes you were diving at your deepest depth for the whole length of the dive.

Of course, this isn't true as the diver descends, dives at max depth, dives a bit shallower, ascends, does safety stops, etc. Thus the tables present a more conservative dive profile and projects a higher level of nitrogen in the body than if the various depths the diver was at were taken into consideration.

Enter the dive computer. Scuba dive computers adjust for the depth and time of the dive as it calculates the level of nitrogen in the body.

The computers work on a mathematical algorithm to calculate gases in the body based on the diver's depth and time underwater. It thus allows the diver more bottom time compared to diving straight from the tables.

The diver is able to ascend to stay within the no decompression limits during the dive. While you can plan a multi-level dive with tables, execution is much easier and flexible with a computer.

from scuba-diving-smiles.com

Now that scuba diving computers are available for scuba divers, a dive can now be maximized allowing the scuba diver more time at the bottom, and easier and flexible execution of dive plans. But nonetheless, a scuba diver has to remember that no scuba diving computer is infallible.

Scuba diving computer from scuba-diving-smiles.com

So, you are now equipped with your pair of fins, wetsuit, mask and snorkel, the basic diving gear that will physically assist you to survive underwater. And now you are thinking of a "mental" gear, a vital equipment that will assist you in making well-informed life-or-death decisions underwater - the scuba diving computer.

According to scuba-diving-smile.com:

Scuba dive computers can be a divers best friend. Traditionally, divers needed a depth gauge, dive watch, and dive tables to have a safe dive.

With the advent of dive computers, all this information can be seen at a glance while underwater. If you plan on doing any significant amount of scuba diving, this is definitely one piece of scuba diving equipment you want to have so you can enjoy more time underwater.

A scuba diving computer can be the best thing since sliced bread for a scuba diver since it allows a lot more safe bottom time than diving off the tables. However, there are a ton of options out there for dive computers as well as computers at all price points.

So before you make the investment in this piece of scuba diving equipment, make sure you are armed with all the information you need to know. Including what is best for you and your wallet.

But before any scuba diving computer can help you make your decisions regarding your safety underwater, you have to make an intelligent buying decision on what scuba diving computer best suits you including your budget. This is every diver's scuba diving equipment worth investing in. So below are vital notes about buying and using scuba diving computers by scuba-diving-smile.com:

Scuba Dive Computers: Information to Know Before Choosing and Using Dive Computers

Scuba Dive Computers: First Some Safety Advice

Notwithstanding the above, however, divers still need to use their common sense and knowledge when utilizing scuba dive computers. You still must understand the basics of diving and dive safety rules - all of which should have been learned in your certification course(s). Although the dive computer may tell you that you can descend too 150 feet or go to 90 feet after some shallow dives, it probably wouldn't be wise to do so.

Dive computers are not infallible either so they should be used in conjunction with tables when planning a dive. A diver should have an idea of how long is safe at a certain depth so if his dive computer is not functioning properly, he will recognize it. Common sense rules.

In addition, some scuba dive computers are more liberal with their calculations of residual nitrogen than other computers. The user needs to understand where his computer falls in this regard and take it into account in his dive profile. It is pretty foolhardy to push most scuba dive computers to the limit.

Our dive computer is pretty liberal so we always adjust the amount of safe time remaining at a depth. No matter what the computer is telling us, we typically subtract at least 5 minutes from our safe time at that depth.

Obviously this is more critical at deeper depths since you have less time allowed. I would suggest talking with the computer dealer or rep to see where your computer falls in this regard and make your own adjustments from there if necessary.

from scuba-diving-smile.com

More about Scuba Dive Computers: Information to Know Before Choosing and Using Dive Computers in the succeeding posts.

Scuba diver in full scuba diving gear making the jump. Photo courtesy of flickr.com

There are a lot to consider when buying a scuba diving computer. Like any other scuba diving gear and equipment, the choice could be a diver's safety or peril underwater. Jessica Tan suggests that after securing the basic diving gear, a new diver should get a basic scuba diving computer. Here is an article from the star online quoting Jessica Tan:

Selecting scuba diving equipment requires your undivided attention and understanding of the quality of available brands,” says Jessica Tan, 30 of Ocean Runner.

“Obtaining reliable scuba gear is money well spent as it is often the difference between life and death when unexpected events arise under water. ”

While scuba gear are available for rent at the dive centres, Tan says owning a pair of fins, wetsuit, mask and snorkel that fit properly is well worth it.

“Once you’ve got these essentials covered, get a dive computer. Available gauges and readings will vary but a basic dive computer will track the present depth, maximum depth and total dive time.”

But the world’s most technologically advanced scuba gear is only as safe as the diver using it.

“Work out the mechanics before you head to the open ocean. Check it often to see how much time you have at each depth during your dive. Otherwise, follow your guide and do not descend below their depth. It’s also important to avoid going below 40m. There’s usually not a lot to see anyway below 40,” says Ujang, 43, also of Ocean Runner.

“If you dive often enough you may consider buying expensive items such as a Buoyancy Control Device (BCD, a vest with air bladders that divers use to control ascent, descent, neutral buoyancy and flotation) and regulator (a neat contraption which regulates air flow from the tank so you can breath underwater),” he opines.

Additionally, adds Tan, it may be wise to invest in signal devices like a safety sausage, a buoy that lets boats know that there are divers swimming below.

“Having your own gear makes you a better, safer diver for the simple reason that you won’t have to get acquainted with different equipment. At the very least, get your own mouthpiece and secure it to the rented regulator using a cable tie so you don’t risk contracting any diseases that come with sharing. When you have your own gear, you’ll want to keep track of service dates to keep it in top condition and maintain the warranties.

“Equipment can malfunction and if you are far enough below the surface, there is a chance you will drown if you don’t know how to do a quick trouble-shoot of these devices underwater and respond constructively during times of emergencies.

“Examine all gear, rental or your own, for flaws before you go on each dive check. Make sure that your regulator and hoses are in working order without leaks, your BCD inflates well and the air in your tank is odour-free and has the right level of air.”

from the star online

TIMESOFMALTA.COM featured an Irish diver who plans to break world record by staying 40 hours underwater. This scuba diving feat requires very good scuba diving gear to ensure his safety while on overnight stay in the marine world. This is where a very good scuba diving computer's importance surfaces. In fact, he is strapping to his arms not just 1 sucba diving computer, but 4 scuba diving computers to ensure his safety. His last attempt failede due to scuba diving computer glitches.

A scuba diver will next weekend attempt to break a Guinness World Record by spending 40 hours underwater in aid of the Aquatic Environment Protection Charity he recently set up.

The world record for salt open-water dives stands at 24 hours and 35-year-old Irishman Sean McGahern, who only started diving six years ago, is gearing up for the challenge, determined to break it.

His training so far has seen him stay underwater for 12 hours, trying and testing his equipment, gas mixes, decompression times, nitrogen and central nervous system levels, anything that goes into keeping a human being alive in a fish's environment for close to two days.

The event will be held at the Reef Club at the Westin Dragonara Resort in an underwater valley that is always sheltered. Only a force five wind and more would be a cause for postponement.

Mr McGahern is "quite confident" he can survive the 40 hours underwater, starting on Saturday at 3 a.m. to surface at 9 p.m. on Sunday. "No one has ever tried to do something like this here," he said.

He has clocked up about 700 dives since he took up the sport as a mere hobby before deciding to take things seriously four years ago, becoming an instructor in two.

Mr McGahern is not put off by the fact that an attempt to break the record last December failed due to computer glitches and he will have no fewer than four top-of-the-range computers strapped to his arms, each costing about €1,400, just in case one shuts down.

Mr McGahern is not short of plan Bs and will even have a laminated sheet with pre-planned dive details in the eventuality that even the land-based computer monitoring his moves goes haywire.

The worst-case scenario is that he goes back to basics - to the way things were done before technology took over.

Neither is he put off by the fact that someone is already planning to break his record next month. "I plan to do the same next year," is his comeback... and the competition goes on.

Working as security man at a bar, Mr McGahern knows a thing or two about safety measures and no stone has been left unturned. He will be wearing a dry suit designed for this purpose, complete with electric transmitters and battery packs to warm him up inside.

At a depth of 15 metres - and definitely not higher than 11 as Guinness stipulates - for almost two days, Mr McGahern is actually likely to feel warm. In fact, his dry suit, hanging after a 12-hour trial, may be wet on the inside... but from sweat!

It has been fitted with a latex sock around his neck to seal the opening and ensure water does not seep through. One of his trials, in fact, had to be cancelled when the neck opening started to move and he was up to his ankles in water.

Mr McGahern will also be wearing a full-face mask, which means he need not have to keep a regulator in his mouth as this could easily fall out due to muscle fatigue. But if that contraption were to fail, he has quick-release toggles to remove it, another two regulators strapped to his neck and a normal mask on stand-by at his waist.

Only a limited area on his neck is being constantly exposed to the salt water, which can have a "pickled" effect on the skin and lead to brittleness and erosion. But water-resistant, salt-barrier creams seemed to be doing the trick, he said.

It could get lonely, boring and dark down there and Mr McGahern has made provisions for this eventuality. He plans to keep active, engaging in a clean-up of the sea bed and offering specialised courses in underwater navigation, mapping, buoyancy and photography.

Neither will he be deprived of food but he will have to be satisfied with a diet of sugary juices, sugared water and soups he can sip out of energy-drink bottles as well as cream cheese and pâté from tubes. What he does with the food once it has been digested is another story...

Mr McGahern will also be regularly changing his twin-set tanks as no air breaks are allowed.

And when it's time to sleep... well, even that can be arranged it seems. During his last trial, he did manage to catch 40 winks in his water bed.

He will also be constantly backed up by three divers and in the company of organised night dives. And the support will be spilling on to the shores, with friends travelling from overseas to back him in his aim to raise funds for the installation and improvement of facilities, such as toilets, at dive sites.

The plan is also to tie marker buoys with wire as their ropes are often cut by fishermen, the buoys removed and nets cast to catch fish in these areas, Mr McGahern lamented.

by Fiona Galea Debono of timesofmalta.com

Scuba diving computer at work underwater

Dive [Scuba diving] computers are an essential piece of gear for advanced divers. Dive [scuba diving] computers are another tool that a Scuba diver can employ to not only increase bottom times, but also increase safety. Dive [scuba diving] computers monitor (conservatively) decompression profiles, have time, depth, and ascent alarms (both visual and audible). Some dive [scuba diving] computers also monitor air consumption and tank pressure. These air integrated computers generally have a lower margin of error than analog gauges (at lower pressures). Recreational Advanced and Technical Divers can benefit from dive [scuba diving] computers. Dive [scuba diving] computers require about as much training as dive tables. Don’t make the same mistake many divers make by purchasing a [scuba diving] computer and relying on trial by error as your training guide.
As you progress through your diving education, your experience, your local dive shop and your mentors will help guide you through equipment choices. Don’t underestimate trying new gear configurations or be afraid to purchase more gear. Many of us, once we buy our first set, think we have finished. However, trying new gear and further using that new fear can be rewarding and exciting.

by John Flanders of examiner.com
__________
Indeed buying new scuba diving gear is an investment for the scuba diver's safety, comfort while underwater, capability as a diver and added appreciation of the scuba diving experience. Since a diving equipment can be pricey, like for instance the scuba diving computer, it is best for a newbie scuba diver to consult an expert for the scuba diving gear that best suits the diver. Moreover, this scuba diving expert can teach the scuba diver how to properly use the scuba diving computer.

Scuba diving is an equipment intensive sport. Breathing and exploring is not normal for us land-walking mammals. Scuba diving requires the training, familiarization and use of all types of equipment. As a diver matures, the use of different equipment for different types of diving only adds to the complexity of equipment selection. Equipment selection should not be a cavalier or impulsive purchase. It is life support equipment. Proper training, fit, comfort and practice makes this equipment feel like a second skin. Proper maintenance is essential to the proper performance of all Scuba gear. Buy right, buy once. This is the mantra of advanced divers!

Selecting Personal Scuba Equipment
Personal Scuba diving equipment includes: (1) Mask (2) Snorkel (3) Fins (4) Timing Device (watch, bottom timer or computer). Generally, most dive shops or charter operators do not rent personal dive equipment. There are many sizing options and “fit” issues. With this in mind it is not economically or logistically viable when, for less than a few hundred dollars, most divers can be outfit with some great choices in personal dive gear. Being that this is personal dive gear, fit is essential! You have to try it on. When buying fins, you have to try the boots on with the fins (if open heel). Masks are very individual and fit directly on the face and create a seal. I am not saying you can’t buy through a catalog or Internet, but you have to try it on first. Treat personal gear as such. A nice mesh bag to keep it all in is a very nice add-on.

Buying versus Renting BCDs and Regulators
Familiarity of gear is an essential component to advancing your diving skills. Call it muscle memory. That’s why most golfers don’t rent clubs. When you rent, there is an adjustment period for familiarizing yourself with the gear you have rented. Additionally, when renting gear, you do not know its history or maintenance cycles. How can you rely on gear to save your life when you don’t know its history or if it has been maintenance appropriately? Additionally, rental gear tends to be the lowest cost, most basic setups available in the market. How far would you want to take basic dive equipment? Lastly, the pure economist in me just hates putting money into other people’s pocket. Most dive rental gear is paid for over and over again. If you buy right; that equity is yours to keep. Of course, the reward is far greater than economic. Divers who own their own equipment have a safer, longer, more enjoyable experience exploring the underwater kingdom.

by: AM Phoenix Scuba Diving Examiner John Flanders

To know more about scuba diving, particularly the pros and cons of using a second- hand scuba diving equipment, click this - The Pitfalls of Used Gear from AM Phoenix Scuba Diving Examiner...

Scuba diving is indeed not just an intensive sport, but an expensive hobby as well. A lot of people may want to pursue it as a hobby, but may be discouraged by the expensive scuba diving equipment. In the passion to pursue this hobby despite its cost, other scuba divers scour for cheap scuba gears which had been used by other scuba divers already. And we are only talking about scuba diving gears. We have not mentioned the cost of scuba diving lessons, scuba diving resorts and accommodations, and many more. As Flanders explained that as a scuba diver matures, his needs for more scuba diving gears complicates. Moreover, as the hobby scuba diving itself matures, so do the technology of the scuba diving equipment.

A case in point is the more advanced scuba diving computer, which will eventually be replacing good old dive watch.

In the next post, Scuba Diving Computer Philippines will be putting on its scuba mask as it takes a closer look at the precious scuba diving computer.