One can now safely prevent accidents caused by as explosion by detecting the presence as well as concentration of combustible gases, through the use of this easy to operate unit. The detector is simply designed to ensure optimum ease of operation. It detects the presence and indicates the concentration of combustible gas and vapour to safely prevent accidents caused by gas explosion. A large analogue meter makes it easy to read gas concentrations and battery levels. A built-in micro air pump provides continuous, steady sample flow to ensure accurate measurement. Some of the salient features are in-built internal audio alarm circuit as well as accuracy and reliability. The detector is compact and light weight and has a low power consumption. It is fitted with a large indication, non-conductive meter. It has a built in micro air pump and an easy battery level check. The standard model is calibrated for lpg [iso-butane] and is provided with an additional zero to 1.8 per cent [by volume] meter scale. Calibrations for other specific gases are available upon requirement.