Solar Rechargeable

Rechargeable by sunlight or indoor fluorescent light. The solar rechargeable feature eliminates the need for battery replacements.


Bluetooth® SMART

Bluetooth® SMART technology enables smartphones or tablets with the Diving LOG app downloaded to receive dive log data from the IQ1204 DC Solar Dive Computer via Bluetooth®.


4 Gas Mix

This advanced feature allows the diver to preset four individual gas mixtures (Mix 1, Mix 2, Mix 3, Mix 4) from 21-100% for easy switching during the dive.


3 Gas Mix

This advanced feature allows the diver to preset three individual gas mixtures (Mix 1, Mix 2, Mix 3) from 21-100% for easy switching during the dive as necessary.


2 Gas Mix

This feature allows the diver to preset two Nitrox gas mixtures (Mix 1 and Mix 2) for easy switching during the dive as necessary. Mix 1: 21 to 50%, Mix 2: 21 to 99%.


Air Integration

TUSA’s Zen Air Integration technology allows a diver to monitor depth, dive time and up to 3 tank pressures accurately and safely in a single glance. The need for bulky analog gauge consoles is gone. TUSA’s alphanumeric digital display conveys air data efficiently each updated second.


Altitude Smart Mode

The Altitude Smart Mode allows the computer to automatically adjust for altitude diving.


Audible Alarm

TUSA’s computers feature Audible and Visual Alarms for the most important dive data warnings. Ascent rate, maximum depth, no decompression limits, safety stop and several other key data can be set to alert the diver.


Backlit Display

Several TUSA computer instruments feature a Backlit Display for night diving or low-light situations. The bright backlight is activated by a touch of a button and the duration can be set for up to 10 seconds in length enabling the diver to view critical dive data easily and quickly.


Dual Time Display

Dual Time Display offers two time zones to be displayed simultaneously on the LCD.


Free Dive Mode

The Free Dive Mode calculates dive times and surface intervals for free diving.


Hoseless Transmitter

Hoseless transmitter technology combines the accuracy of air integration with wireless data transmission resulting in a next generation ultra-compact wrist-top dive computer – the Zen Air.


Optional Deep Stop

An optional safety stop on No Deco dives exceeding a depth of 80 feet.


PC Downloadable

TUSA’s PCLogbook, TUSA DataLog PC, and DiverLog Mac interfaces allow the diver to transfer complete log and profile history from the dive computer to a personal computer or upload user settings to the computer. A PC interface unit is sold separately.


Step-Back Feature

The Step-Back Feature allows user to navigate forward or backward through the menus.


User Replaceable Battery

Convenience and ease-of-maintenance is imperative in the design of today’s dive computer. Each of TUSA’s computers offer a user-friendly replaceable battery that can be changed on a moment’s notice using standard widely-distributed batteries.


Vibrating Alarm

TUSA is the world’s only equipment manufacturer with vibrating alarm technology. This patented unique alarm function is similar to the vibration setting on most cellular telephones. The user is alerted to important dive data with several vibrations instead of an audible alarm that can distract your dive partners.