MGC PumpIntroducing Multi Gas Clip Pump (MGC Pump) portable multi-gas detector, perfect for confined space entry. Low-power photometric technology allows the MGC Pump-IR to run a full 5 days without recharging the battery and only requires calibration every six months. Infrared sensor technology is used for the detection of combustible gases and electrochemical sensing technology for H2S, CO and O2.