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Sherwood Amphos Air Makes You More Sophisticated Diver

Sherwood Amphos Air Makes You More Sophisticated Diver

Sherwood Amphos Air - dive computer with air-integration for two tanks, standalone digital wrist watch, Deep and Safety Stops and Personal Conservative Factor. Diver may set suitable backlight duration and sampling rate. On top of that - Amphos Air has 4 dive modes: Air, Nitrox, GAUGE and FREEdive.

This dive computer from Sherwood scuba well suits both experienced and novice divers. 

General Information
User Interface
Your Review



Sherwood Amphos Air dive computer inherited mostly all great functions of its predecessor Sherwood Amphos. Main differences are those which related to air-integration. In this scuba computer Sherwood introduced air-integration for 2 gas mixes.

Mainly all user interface, display layout, and all commands are the same with Amphos and Amphos Air. Only differences are related to wireless air operations in Amphos Air. Those differences are represented by additional information on display, bit different set up process, and extra alarms regarding to wireless air-integration (Air Time Remaining, TURN and END pressure alarms).

Sherwood Amphos Air will display air pressure in PSI or bars of the corresponding tank with activated and paired wireless transmitter at lower part of display. Also on surface when NORM SURF MAIN by pressing on S-button for 2 seconds will activate alternative screens to show a diver battery status and tanks pressure with activated and paired transmitters.


Sherwood Amphos Air dive computer

Copy this Sherwood Amphos Key Features & Alarms Card for your Reference and Share with your friends and buddies!


Sherwood Amphos Air has large, intuitive display, and user-friendly interface. It has pretty easy setup and well-structured user manuals.

Below is a list of new features which made Amphos Air different from Amphos. We can set up in this Sherwood dive computer following extra parameters:

  • Turn Pressure alarm in the range of 1000-3000 PSI;
  • End Pressure alarm in the range of 300-1500 PSI;
  • setting TMT #1 and TMT #2;
  • PO2 - 1.00-1.6 ATA


  • you have stylish dive computer with air integration for very competitive price;
  • air integration for 2 tanks make you more confident about air consumption;
  • you will enjoy different modes, including freediving as well;
  • you will get intuitive and user-friendly dive computer;
  • you will be able to replace battery yourself with ease;
  • you will look very well-groomed wearing Amphos Air as a digital wrist watch between your dives!







User Interface
4 buttons
Dive Modes
Air, Nitrox, GAUGE, FREEdive
Standalone Digital Watch
Integrated Digital Compass
modified Haldanean
Number of Gas Mixes
Air, 21-100%
1.0-1.6 ATA
Air Integration
Safety Stop (SS)
Deep Stop (DS)
Conservative Factor
Altitude adjustment
Dive Planner
9-57 m
Logbook Capacity
24 the most recent dives
Max Operational Depth
100 meters
Backlight duration
OFF/5/10 sec
Sampling Rate
2/15/30/60 sec
User Replaceable Battery
Data Retention
PC Interface
2 years










Like its predecessor, Sherwood Amphos Air is designed with 4 buttons user's interface. They are big enough and comfortable to press even in thick gloves.

Display is similar to Amphos dive computer and divided into 3 sections: top, middle, bottom. Viewable area is large to show all necessary data by displaying big and sharp digits. Only additions that can be found - all related to air integration: wireless link symbol, tank in use air pressure, and applicable alarms.

Dive computer has two bar graphs to display nitrogen loading/oxygen toxicity on the left side of the display and ascent rate is on the right:

  1. Nitrogen loading bar Graph (NiBG) – shows NO-DECO/DECO status: when you go deeper and dive time increases, segments will be added to NiBG, and when you ascend and swim in shallow waters – amount of segments decreases therefore giving you more time to stay underwater; NiBG consists of 3 zones: NO-DECO/Caution/DECO;
    O2 bar graph is displayed only when dive computer set for Nitrox;
  2. Ascent Indicator Bar Graph (ASC) – represents diver's ascent rate at certain depths







Before diving, we will program certain dive mode and all related to it desirable parameters. Dive computer has 4 Set Groups:

  1. Set F Group (FO2):
    • FO2 Mix 1 - Air, 21-50%;
    • FO2 Mix 2 - Air, 21-100%;
    • FO2 Default - ON/OFF;
    • PO2 alarm - 1.0-1.6 ATA
  2. Set A Group (ALARMS):
    • alarms - ON/OFF;
    • Ascent alarm - ON/OFF;
    • Depth alarm - ON/OFF/9-99 meters;
    • NiBG alarm - ON/OFF;
    • Dive Time Remaining (DTR) alarm - ON/OFF/5-20 min;
    • Elapsed Dive Time (EDT) alarm - ON/OFF/10-180 min;
    • Turn Pressure alarm (TMT #1 only) - 1000-3000 PSI;
    • End Pressure alarm (TMT in use) - 300-1500 PSI
  3. Set U Group (UTILITIES):
    • wet activation - ON/OFF;
    • units;
    • Deep Stop - ON/OFF;
    • Safety Stop - ON/OFF;
    • Conservative Factor - ON/OFF;
    • backlight - OFF/5-10 sec;
    • sample rate - 2/15/30/60 sec;
    • TMT setup
  4. Set Time Group (Date/Time):
    • main and alternate time;
    • daily alarm;
    • hour & hour format;
    • month & year;
    • day;
    • CDT;
    • Chronograph


Sherwood Amphos Air dive computer has Dive Planner that works for ranges 9-57 meters. If I plan repetitive dives - planner will calculate available NO-DECO time according to my nitrogen intake, oxygen toxicity from previous dives, and surface interval.

As you may see - new Sherwood dive computer inherited all the features from Amphos user interface and menu sets. But there still are few differences:

  • During set up procedure - when you set A Groups (alarms), diver should adjust TURN alarm (TMT #1 only) in the range of 1000-3000 PSI, and END alarm (TMT in use) in the range of 300-1500 PSI;
  • In U Group (utilities) there are two extra parameters - setting TMT #1 and TMT #2. Diver needs to enter 6-digits special code in order for dive computer to recognize wireless transmitters;
  • PO2 alarm set up was moved to F Group (in Amphos it was at A Group)







As a dive computer, Sherwood Amphos Air operates in 3 modes.

Operation in those modes are identical to previous model - Amphos, so I won't be describing them again. Just check out review of Sherwood Amphos and you will have full understanding how it works:

  1. Normal mode – when you set it for Air or Nitrox with FO2 up to 100%;
  2. GAUGE mode – in this mode it functions as a depth gauge and timer only and doesn’t perform calculations for nitrogen absorption and oxygen accumulation, but works as an air-integrated computer;
  3. FREEdive mode – this mode is for diving without scuba gear with the set of specific freediving alarms

The main difference between two models - air integration. And this new function is expressed by extra alarms, TMTs setting, additional screen with status of wireless link and tank in use air pressure (ALT #3), and extra data about pressure on Log screen.


Sherwood Amphos Air No-Deco card

Copy this Sherwood Amphos Air NO-DECO Displays Card for your Reference and Share with your friends and buddies!


Also if you set Amphos Air to GAUGE mode - dive computer operates as an air integrated instrument and shows Air Time Remaining (ATR) and tank in use air pressure in PSI or bar, and doesn't perform nitrogen and oxygen calculations, of course.


Those mentioned above are the main additions to Amphos Air. And the rest of functions are pretty the same as Sherwood Amphos dive computer. I won't be describing all dive modes again - they are described in detail in Sherwood Amphos review.







After the Transition Period diver will have access to the following information:

  • FLY mode - Time to Fly Countdown Timer;
  • DESAT mode (NORM only) - Time to Desaturate Countdown Timer;
  • PLAN mode – this function allowed the planning next dive-sessions and seeing for how long diver could stay underwater safely and at what depth, according to his/her current nitrogen accumulation and oxygen toxicity from previous dives;
  • Logbook mode – it consists of 3 pages of dive data and stores info of your 24 most recent dives (battery removal does not make any affect on Logbook memory);
  • History mode – consists of 2 pages and accumulates information, like number of dives, number of dive hours, and max depth achieved from all previous dives with Air, Nitrox, or in GAUGE mode (battery removal does not make any affect on History memory); freedives are not recorded in the viewable mode, but we may use software to download freedive history to our PC;
  • PC interface – this function allows you to upload settings and download data from Sherwood Amphos Air to PC or Mac by using special cable and software







Sherwood Amphos Air: What Divers say


  • easy set up and dive, identical to Amphos but with air integration for 2 TMTs;
  • perfect and recommended dive computer for the beginners in diving;
  • intuitive user interface and easy to read display data;
  • stylish, durable and comfortable, as a dive computer and wrist watch;
  • good price for the complete system including 1 TMT and PC cable


Diving with Sherwood Amphos Air scuba computer is very similar to Amphos, except new function - air integration and support for up to 2 wireless transmitters. Amphos Air has user-friendly interface and user manuals structured very well. Even if someone bought this instrument as his/her first computer - no problem with setting and diving with it.

Display layout is a bit different from previous model with extra data related to air pressure, wireless link and pressure alarms. But it is easy to read with sharp digits and strong backlight for 5 or 10 seconds.

I like its stable wireless signal - we didn't notice many interruptions, just very rarely and with immediate restoration. And switching gases procedure was pretty easy.


Sherwood Amphos Air dive computerSherwood Amphos Air
Dive-Computer-Wizard Rating
golden star golden star golden star golden star golden star


Sherwood Amphos Air dive computer gave me a very strong impression of multifunctional and at the same time user-friendly dive computer. It is perfect for recreational divers who uses more than one gas mix, and beginners in scubadiving as well.

This instrument has very competitive price as a complete system (1 wireless TMT and PC cable) at this moment, so I think if you need solid recreational dive computer with wireless air integration - look no further! Sherwood Amphos Air may be your best dive buddy!



Add comment
AllanM, 11 April 2014 15:04
Stable Wireless & Easy To Dive

That's my 2nd dive computer, my 1st Sherwood Insight, which now serves me as a backup. I haven't made too many dives with it, but learnt Amphos Air very well, thanks to good user documentation and user-friendly interface, and easy to understand display. Perfect to do night diving - backlight is strong.

Also firstly I was a bit unsure about its wireless, but for more than 20 dives I've never had any issues with it. I use only one transmitter, so can't comment on the 2nd.

Sherwood Amphos Air is perfect for me, as I'm only recreational diver and not going for trimix.

I recommend this dive computer for all recreational divers - it's really great! But buy it with transmitter at the same time - you will save about 100 backs!

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