Tusa IQ-650 Element Dive Computer
Single button puck-style module in wrist boot 
Air and Nitrox (21-50%) Operating Modes 
Manual or Water-Activation 
Deep Stop Feature and standard Safety Stop 
Automatic altitude adjustment from sea level to 14,000' 
No fly icon, residual nitrogen discharge time display 
Dive Log stores a maximum of 12 dives 
User-replaceable battery with hot-swap (Battery: CR2450, 3V)
TUSA Algorithm based on Buhlmann ZHL-16c 
Variable Ascent Rate Indicator 
Rental unit reset option