toxic gas monitor,Explosion proof,intrinsically safe,Corrosion resistant,4-20 mA or CAN bus output HK-7200AToxic Gas Detector OverviewThe Ex HK-7200A ToxicGas Detector, based on electrochemical principle, is designed for continuous detecting and monitoring of hazardous gas leaks in ambient air and provides a 4~20mA output signal that can be connected to a controller,PLC,DCS or similar ...