Manish engineering cornpany supplies a range of precision refrigerant and cornbustible leak detectors. These precision refrigerant leak detector are suitable for ultra sensitive inspection and location of leak, they are designed to pinpoint even the smallest leak of toxic and environmentally damaging refrigerants including the latest post-cfc gases. The instrument senses a variety of gases such as cfcs, hcfcs, hfcs, sf6, ethylene oxide, r-11, r-12, r-22, r-113, r-114, r-123, r-125, r-134a, r-500, r-502, etc. It also has an operator control tick rate plus an audio/visual alarm which can be calibrated to suit any application. The instrument can be calibrated to any standards and alarm settings are adjustable from 0 to 5% by volume. It can be adjusted by the user as per his requirement. The instrument incorporates an earphone to allow the tick sounder to be used in noisy/silence zone conditions. User areas include: domestic and commercial refrigeration systems, pharmaceutical and petrochemical, automotive and other air-conditioning and maintenance, quality control, research and development. A multi-purpose combustible and toxic gas leak detector is also available.