"“PPS Make Fixed OXYGEN Gas Detector Model: gaZsens Ox” Comprising of sensor housed in Explosion proof (Exd IIC T4) & Weatherproof (IP 55) certified Stainless steel (SS-316) sensor housing along with 2 wire intrinsically safe Transmitter PCB intrinsically safe {As per Is 5780:2002(IEC 60079-11-1999)} housed in FLP. (IIA/IIB OR IIC) enclosure, FLP. Cable glands (applicable for class IIA/IIB OR IIC) Calibrated by Zero GRADE N2 Gas & Oxygen Detection Range: 0 – 25 % V/V Sensor Type: Electrochemical type; Sensor Life: App. 2 years. Operating Temperature : -10 to +50 deg C Accessories : Cable Gland 3/4""ET Exd. Certification: Sensor Housing & Transmitter Enclosure both are CIMFR TESTED, BIS APPROVED & PESO CERTIFIED."