Model: EF-H1V20

This is gas alarm system with solenoid valve(DN15 or DN20 or DN25)

CE approved

Sensor: Semiconductor

Power: 110V or 220V/50Hz 
Detect gas type: 
      Coal gas: 1000~5000ppm

      Liquid petroleum gas: 1000~10000ppm

      Natural gas: 1000ppm~5000ppm 
Operating Temperature: -10℃ ~ 50℃ 
Ambient Humidity: 10%~ 90% RH

Alarm Volume:  ≥85db@1M 
Alarm Pattern: BI 0.5s--pause 0.5s repeat this pattern 
Power Consumption: ≤3 W