The Tusa OQ-800 DC-Sapience Scuba Computer, a Nitrox compatible dive computer is equipped with the world's first vibration warning function. The Most Unique Dive Computer on the Market. This Dive computer is only 2 3/8 inch square and only 5/8 inch thick. The primary display characters of the Tusa IQ-800 DC-Sapience Computer are 1/2 inch tall. No problem seeing this display on this computer, even for those of us with diminishing eyesight. The Tusa IQ-800 DC-Sapience Dive Computer is also the first on the market of offer the diver a vibrating alert system for all alarms or the standard beep alarms, available to you in the setup menu.
Some additional features:

• The IQ-800 is Nitrox compatible for mixtures from 21% to 99%.
• The entire display is backlit for easy night and low-light diving.
• The dual decompression algorithm is the Modified Swiss version that track 12 theoretical compartments.
• The additional safety factor in the decompression calculations that offers more conservative calculations for multi-day continuous diving.
• The memory on the IQ-800 DC-Sapience stores up to 60 dives with a sampling rate of twice per minute.
• The history function records the total number of dives, total dive time, and deepest dive data.
• The 3 minute safety stop countdown clock engages when your ascent reaches 20 feet of less. The IQ-800 is equipped with a long-life user replaceable battery.