Gas alarm with 3/4 inch electromagnetic valve

Model: EF-PNG101V20

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

Electromagnetic valve: 3/4 inch DN20 brass