The IQ-950 is the ultimate dive instrument offering a set of robust features that can be adjusted for personal preference. The Zen Air is only available in brushed metal finish. Features: Advanced air-integrated hoseless watch computer. Air, Nitrox, Gauge, Free Dive and Watch Operating Modes. 3 Gas Mix Feature: Mix 1 (Air, 21-50%), Mix 2 (21-100%), Mix 3 (21-100%). Wireless Switching Technology to monitor up to 3 transmitters. On-screen tank pressure display (max 5000psi/345bar). Advanced user safety settings and Conservative Factor. Variable Ascent Rate. Manual or Water-Activation. Audible and Flashing Icon Alarms - User Adjustable. Deep Stop Feature and Safety Stop - User Adjustable. 1 Touch Log Access - 24 dive log memory. History Mode - Up to 9999 hours/dives stored. Large alphanumeric and backlit display. 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 (CR2430, 3V and CR2). TUSA Algorithm based on Buhlmann ZHL-16c. Colours: Black / Brushed Stainless (IQ-950). Package Includes: An IQ-950, One Transmitter, Datalog USB Interface, CD, Wetsuit Extension Strap, Lens Protector. Deep Stop Function 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. Activated when depth becomes greater than 80 FT (24 M) for more than 1 second. Deep Stop screen appears upon ascent(s). Recommended Stop Depth is displayed and Stop Time as min:sec, counting down from 02:00 to 0:00. Deep Stop feature is disabled upon entry into Decompression Mode.