The LED Tank Module allows you to transmit tank pressure directly to your Mares dive computer. Through a colour code, it is possible to see an immediate estimate of the level of gas present in a cylinder. Once mounted on your first stage, on one of the high pressure outlets (7/16") it can be associated with your computer in no time. Through a colour coded LED it can be used as a pressure gauge, even when on the surface. The probe has a flashing LED that indicates gas pressure using three colours: green for over 180 bar, yellow at 100 bar and red below 50 bar. Through the use of the LED Tank Module the dive computer is able to provide you with the real consumption in litres once the cylinder volumes have been set, thus optimising bottom time according to decompression gas supply. To prevent excessive battery consumption through flashing, if there is no change of more than 1 bar for more than 4 minutes, the flashing is deactivated. The battery is a CR123A and allows between 150 and 200 dives, taking into account operating temperatures. The main features of the LED Tank Module pressure transmitter are: Transmits tank information Coloured LED for a quick check of the tank on the surface Coloured LED to signal low air situations to your buddy during the dive Computer/probe pairing EN250:2014 certified to 300 bar Battery type: CR123A, user-replaceable Compatible with Genius, Smart Air, Quad Air and Icon HD Net Ready computers.