Zen IQ-900

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The IQ-900 Zen is a full-featured wrist-top computer that boasts a refined, stylish design and can be worn at the office, on the town or more importantly 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 highl

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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