The Mares Dive Computer Quad Ci Color Black/Silver is a versatile tool for scuba and diving gear, combining advanced decompression theory with practical on-water performance. It uses the Bühlmann ZH-L16C algorithm with customizable gradient factors and supports air, nitrox, and trimix modes, along with a bottom timer for precise depth tracking. The 8-color high-resolution MIP display provides clear, jumbo-sized information, while the full-tilt digital compass includes bearing memory and a stopwatch for navigation during dives.

Hoseless tank data integration works with up to five transmitters, and color-coded tank pressure and saturation levels offer at-a-glance readability. The device features a decompression dive planner with additional surface interval function, a logbook capable of 100 hours of dive profile data at a 5-second sampling rate, and a bottom timer mode with a resettable average depth and stopwatch. An underwater menu allows certain settings to be adjusted during the dive, and the Time To Reserve (TTR) indicator helps manage reserve limits safely. Altitude is automatically adapted by sensing ambient pressure every 20 seconds, even when the unit is off, and firmware updates are available through the Mares app.