Subtronics (India) Pvt Ltd’s Pocket Type Gas Detector MP-21 is a portable detector capable of detecting a range of gases such as LPG, CNG, methane and ammonia. In all, it can detect about 300 toxic and combustible gases. The instrument has power ON and low battery indicators and gives an audible beep with a flashing red LED when it detects the presence of a toxic or combustible gas beyond a preset level. Its advanced digital circuit makes it reliable and accurate. The gas detector is robust and compact, weighing only 120gm. The rechargeable batteries help to reduce maintenance and once charged, they last for more than 10 hours. It comes with an optional probe and a charger, leather case and a belt clip for hands free operation. Its chief applications are in nuclear, thermal & power generating stations, automobile plants, cell room autoclaves, compressors, battery rooms, plants producing chemicals like formaldehyde and other similar places.