The IQ-900 Zen is TUSA's latest full-featured wrist-top, watch style computer. The Zen is a stylish instrument that can be worn at the office, on the town or in the ocean - anytime, anywhere the Zen is your go to timepiece and dive instrument.  

The IQ-900 can be operated as a watch, Air computer, Nitrox (EANx) computer, digital depth gauge/timer or as a free dive depth gauge/timer.  The Zen's large alphanumeric and backlit display allows for high legibility in or out of the water, although its size is that of a normal style watch.  In addition to offering the latest comprehensive computer features, the Zen adds a Deep Stop function for enhanced safety.  

Deep Stop Function
Several TUSA computers feature an optional deep stop function for additional safety. The deep stop mode is activated when a dive exceeds 80 FT (24M) for more than 1 second. Upon ascent, the computer will display a Deep Safety Stop screen and the recommended stop depth for a period of 2 minutes. This deep stop is highly recommended as additional opportunity to off-gas, but is not mandatory. If the diver chooses not to serve the stop it will not adversely affect the remaining No-Decompression Limits of the dive.

   
     Zen Overview Video               Zen Settings Video

Features:

• Advanced 2 gas wrist-top (watch) computer
• Air, Nitrox, Gauge, Free Dive and Watch Operating Modes
• 2 Mix Switching Feature: Mix 1 (Air, 21-50%), Mix 2 (Air, 21-100%) 
• Manual or Water-Activation
• Audible and Flashing Icon Alarms
• Large alphanumeric and backlit display
• Advanced user safety settings 
• Deep Stop Feature and Safety Stop
• 1 Touch Log Access
• Automatic altitude adjustment from sea level to 14,000'
• No fly icon, residual nitrogen discharge time display
• PC download and upload settings/log data with TUSA Datalog Interface
• User-replaceable battery with hot-swap (Battery: CR2430, 3V) 
• TUSA Algorithm based on Buhlmann ZHL-16c
• Variable Ascent Rate Indicator
• Colors: Titanium Grey/Black, Black  
• DOWNLOAD IQ-900 Product Manual or Quick Overview Card
• DOWNLOAD TUSA Datalog Software
• View the TUSA Instrument Comparison Chart

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Additional Product Info