Dive Computer Expert Reviews
Saving Your Precious Time And Finding The Best Dive Computer For You
Dive computer reviews are perfectly organized and consist of fully researched information and ratings of Aeris, Cressi, Mares, Oceanic, Sherwood, Suunto, Tusa, and UWATEC/ScubaPro brands. In Catalogue Section you may compare any models side-by-side and select dive computer according to your needs! Join thousands of happy customers!
Aeris A300 Ai was introduced to our scubadiving market at the very beginning 2012. This step clearly shows that Aeris always trying keeping up with the greatest demands of the divers and do this very well!
This new advanced instrument can be recommended dive computer for technical diving, as it supports up to 4 different Nitrox gas mixes, has integrated digital compass, improved user interface and Dual Algorithm. And by the way, Aeris A300 Ai may easy fit any beginner in scubadiving, who is serious to grow as a diver.
Copy this Aeris A300 Ai Features & Alarms Card for your Reference and Share with your friends and buddies!
Aeris A300 Ai is an advanced hose air-integrated dive computer with possibility of setting up to 4 Nitrox mixes and integrated digital compass. Instrument was built with Dual Algorithm that means - we may choose between conservative and more liberal diving to accomodate our particular needs. Air integration works only for the 1st tank and therefore all measurements and alarms are valid only for this cylinder.
Algorithms are listed below:
Aeris A300 Ai is a praiseworthy successor of Aeris Atmos Ai, which proved to be very reliable buddy and actually continues of doing this!
Aeris A300 Ai has 3 control buttons - Mode(Menu), Advance(Add), Select(Save). User interface is quite easy to get familiar with, but first one will need to read thoroughly manuals to learn how to manage comprehensive set of menus. Interface has "Step Back" feature, which we found very convenient during set up - it saved lots of time!
Visual information is accompanied with 2 Bar Graphs - TLBG on the left side for nitrogen loading and VARI that shows ascent speed.
TLBG consists of 5 bars to address 3 level of nitrogen loading:
During surface operations or diving Aeris A300 Ai dive computer has main and few alternative displays to keep the diver well informed.
Integrated digital Compass can be accessed from Surface Main or Dive Main screens. Compass operation has limited timing and when there is only 15 seconds left for Compass to function (time displayed on the screen) - diver may extend the operation by pressing S-button. It will give extra 2 minutes to stay in Compass Mode.
Now we will set up our Aeris A300 Ai and be ready to get wet!
Copy this Aeris A300 Ai Fine-Tuning Card for your Reference and Share with your friends and buddies!
As computer has Dual Algorithm feature – it means that you may choose between liberal and conservative diving. And you may make A300 Ai even more conservative by setting Tissue Loading Bar Graph (TLBG) alarm by adjusting number of bars and setting Personal Conservative Factor (ON/OFF). Setting and adjusting these values will move you further away from exceeding No-Decompression Limits (NDLs).
After we set Aeris A300 Ai, we may plan the next dive and scroll through the depths at range 9 - 57 meters. Dive computer shows allowable No-Deco depths and bottom times depending on divers nitrogen loading and oxygen saturation from previous dives, and also Personal Conservative Factor.
If needed - we may access dive preview screen from the Main Menu to check some of our settings before diving. After that - we are ready to go underwater!
Before going into water we need to set Wet Activation to ON and dive computer will automatically activate Dive Mode upon entering water.
Aeris A300 Ai: Diving With Air & Nitrox
Main Dive screen displays lots of dive data and it depends on how we set Aeris A300 Ai, whether we set it for Air or Nitrox, selection of Algorithm, enabling Personal Conservative factor, etc.
Copy this Aeris A300 Ai NO-DECO Card for your Reference and Share with your friends and buddies!
In No-Decompression Mode you may have Deep Stop prompt if Deep Stop option was set to ON before. In this case Aeris A300 Ai will display values related to Deep Stop function, like Stop Depth and Time, and Deep Stop icon (bar and arrows) and text message.
If you set Safety Stop function to ON – A300 Ai will prompt you displaying attributes for Safety Stop, like Safety Stop icon (bar and arrows) and text message, Stop Depth and Time counting down.
Switching gases is a simple procedure. It is accessible from Dive Main where you may choose the appropriate gas mix if it was enabled during setting up. Only thing to remember - dive computer will give an alarm, if PO2 selected gas goes to 1.6 ATA.
During the dive if we exceeded No-Decompression time and depth limits - Aeris A300 Ai would activate Decompression Mode – audio alarm will come up and 5 segments on TLBG, UP Arrows and alarm LED will flash.
After having that, you need to ascend safely to the required depth, shown on the display, or a bit deeper, and stay at that depth required time that is shown as well. When you complete required Decompression time, next shallower Stop Depth may be displayed, if needed, and you may ascend to that level to continue decompression process.
To assist us to complete decompression correctly, Aeris A300 Ai has main and alternative displays with all information we need. Below you may see the summary of Decompression Stop main and alternative displays:
Copy this Aeris A300 Ai DECO Card for your Reference and Share with your friends and buddies!
There are few Deco Violations that we may make unwillingly:
This Aeris computer constantly monitors PO2 and O2 conditions and upon reaching certain point it will give you High PO2 or High O2 alarms with all applicable dive data to help us stay in the safe side in those situations.
Aeris A300 Ai: Diving In GAUGE Mode
Dive computer may be set to Gauge mode. In this case Aeris A300 Ai won't compute No-Deco Limits and will work as a timer and depth gauge. You will be able to read tank pressure and access Compass mode.
Gauge Mode has its own set of menus with logs and history, no-fly time, op mode and set menu. Many items are shared with Air/Nitrox menus, except access to FO2 setings and other few things.
Below is the list of values displayed on main and alternative dive screens during diving in Gauge mode:
To make a Gauge Delayed Violation 3 (DV3), just out of curiosity, we need to descend below maximum operational depth for Gauge mode - 120 meters. At that moment dive computer will beep on you and LED and UP Arrows will flash.
After the Transition Period you will have access to following modes of Aeris A300 Ai:
Aeris A300 Ai: What Divers Say
After reviewing Aeris A300 Ai, we learnt that this new hose air-integrated device can be recommended dive computer as for beginners and technical divers too. Comprehensive set of features allows complete beginner starting dive career with very reliable buddy and progress faster, and technical divers will find 4 Nitrox gas-mix support and Dual Algorithm to accomodate all possible situations in diving.
Integrated digital compass is very handy addition to whole package. It is required to learn how to calibrate it first, but when everything is set up and running - it will always keep you on the right course. You need to play around with compass settings though to make it right!
Another thing to look at - side button. It is smaller than front buttons and it may be harder to press if you wear thick gloves.
If you need reliable and advanced hose air-integrated dive computer with 4 gas mixes, Dual Algorithm for liberal and conservative diving, integrated digital compass, and you are ready to invest a bit higher price in your diving experience - Aeris A300 Ai is definitely worth your attention, as it continues the line solid and multifunctional Aeris computers!