Features:

• Excellent reliability & high stability.
• Durable sensor head.
• Self test function
• Visual and audible alarm function
• Low voltage warning
• Sensor-fault detection
• Can be connected with valve
• Hush function in alarm status
• Less affected by other organic solvent.
• Loud sound signal of 85 dB at alarm mode.
• Three-year limited warranty. 
• Low power consumption
• Test button to test the units electronics and verifies proper unit operation.
• Easy installation with a plastic bracket.
• Widely use for home, coal station, colliery, car and so on.
• Detect all sorts of combustible gases, such as coal gas, liquid petroleum gas and natural gas, carbon monoxide and monitor automatically.

Specification:

• Power supply: AC220V/50~60Hz& 9v backup battery
• Sensor: Electrochemistry Co and semi-conductor Gas Sensor
• Static current: ≤40MA
• Alarm current: ≤80MA
• Static consume: ＜0.6 W
• Alarm consume: ＜2W
• Alarm volume: ≥85dB within 1 meter
• Operation Ambient Condition: 4~38℃, 25~85%R.H.
• Alarm density:
  • Carbon monoxide:
    • 50PPM: 60-90 minutes
    • 100PPM: 10-40 minutes
    • 300PPM: less than 3 minutes
    • 400PPM: Immediately
  • Coal gas: 1000~5000ppm,
  • Liquid petroleum gas: 1000~5000ppm,
  • Natural gas: 1000ppm~5000ppm
    • Responding time: Gas ≤30S  
    • Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal.