Features: 1[Explosion Proof] Industrial gas alarm has a one piece die cast aluminum shell, thickened and explosion proof, wear resistant and durable, high strength. 2[With Dust Net] Industrial gas detector is designed with breathable dust net, which can guard against dust larger than 1mm and extend the service life of the sensor. 3[Sensitive] Professional combustible gas alarm detector adopts advanced micro power technology sensor, with rapid response and sensitive detection. 4[Multi Application] Combustible gas alarm has can be widely used in oil refineries, chemical plants, boiler rooms, fire fighting, spray painting plants, etc. 5[Easy To Use] Gas leakage monitor has clear digital display, can provide sound and light alarm, with remote control, easy to control, can work continuously for a long time. Item Type: Industrial Gas Alarm Material: Die Cast Aluminum Product Size: Length: Approx. 20cm/7.9in, Width: Approx. 18.5cm/7.3in, Height: Approx. 9.2cm/3.6in Bolt Hole Product Size: Approx. 11.5 x 11.5cm / 4.5 x 4.5in Gross Weight: Approx. 1588g/3.5lb Detection Object: Combustible Gas Thread Specification: G1 Male Thread Alarm Mode: Sound ( 70dB), Light Alarm, Relay Output Signal Remote Control Battery (Shipped Without Battery): 1 x Button Battery, CR2025 Type Detect Gas Pressure: 86-106kPa Voltage: DC (243.6) V Working Mode: Long Term Continuous Work Working Environment: Temperature: -10-55, Humidity: 93%RH (No Condensation) Measuring Range: 0-100 Percent LEL Resolution: 1 Percent LEL Low, High Alarm Point: 20 Percent, 50 Percent LEL Can be used to detect gas in refineries, chemical plants, LPG stations, boiler rooms, fire fighting, paint spraying plants and other places where gas is present 1 x&nbspIndustrial&nbspGas&nbspAlarm Host 1 x Remote Control (Battery Not Included) 1 x Instruction Manual