Nitrogen Dioxide NO2 Combustible Fixed Gas Detector (0-100ppm)The Nitrogen Dioxide NO2 Combustible Fixed Gas Detector (PX2 1 2 E1130 E 01) is designed for continuous monitoring of nitrogen dioxide gases to prevent leaks in the range of 0 to 100ppm for 24 hours in confined spaces or industrial manufacturing industries. This detector is also compatible with a wide range of controlled BMS systems and alarms, is based with a 4 20 mA RS485 Modbus output signal, alarm and fault relays (all SIL2 certified) for