Day in, day out, your workers have to charge their portable multi gas detectors so they can keep testing for the presence of combustible gases, H2S, CO, and O2. Unfortunately, sometimes they may forget to do so. Gas Clip Technologies can help prevent this safety risk with our new Multi Gas Clip (MGC). It has the longest battery life of any portable gas detector by a long shot. The new MGC can go a full 2 months without a charge, even without ever having to be turned off. Shut down the unit nightly and the battery can last up to 4 months. Whats the secret of the MGC's extended battery life? It uses low-power photo-metric technology for the detection of the combustible gases (LEL). Instead of draining the battery with archaic pellistor technology, the MGC uses an IR source. This conserves power, so the battery lasts and lasts and lasts. Gas Clip Multi-, Carbon Monoxide, Hydrogen Sulfide, LEL, Oxygen Gas, 0 to 100 ppm Hydrogen Sulfide, 0 to 500 ppm Carbon Monoxide, 0 to 100% LEL, 0 to 30% Oxygen Detection, Alarm: Audible/Vibration/Visual, Alphanumeric LCD Display, 0.1 ppm (H2S)/0.1 ppm (CO)/0.1 % (O2)/0.1% (LEL) Resolution, -20 to 50 °C Operating, Lithium-Ion Battery, 4.7 in H x 2.4 in W x 1.2 in D Dimensions