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
The Zen computer features 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 past 50 FT (15M), the computer will display a Deep Safety Stop screen and the recommended stop at 40 FT (12M) 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.

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 (Available 9/09)
• User-replaceable battery with hot-swap (Battery: CR2430, 3V)
• TUSA Z+ Algorithm based on Buhlmann ZHL-16c
• Variable Ascent Rate Indicator
• Rental unit reset option
• Colours: Titanium Grey/Black, Black