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  8. Natural Gas Alarm
  9. Natural Gas Alarm
    Dahua

    Natural Gas Alarm

    Stock Code: HY-GA40A

    Detects natural gas leaks early and shuts the valve.
    A methane alarm for homes and workplaces with a natural gas line. The sensor catches a leak at the 10% LEL threshold, sets off an audible and visual alarm, and at the same time closes the pipeline valve and starts the exhaust fan.
    Methane (CH₄)Gas Type
    10% LELAlarm threshold
    ≤30 sResponse time
    70 dB (A)Alarm sound output
    DC 12 VSupply voltage
    -10°C ~ +55°COperating Temperature
    Key features
    Methane detectionThe high-performance sensor recognizes natural gas at the 10% LEL threshold and sends the alarm signal within 30 seconds.
    Valve and fan linkageOn alarm it closes the pipeline valve and starts the exhaust fan, and 1 valve output plus 1 relay output carries that linkage.
    Audible and visual warningThe built-in buzzer produces 70 dB (A) at 1 m, and three indicator lights show the device status.
    Short warm-up periodThe device starts monitoring 180 seconds after power-up and draws under 0.8 W on a DC 12 V supply.
    Wall mountingThe 86.6 mm × 86.6 mm × 29.2 mm body mounts on the wall, and the CE certificate covers the device.
    SilenceThe user silences the alarm while the device keeps monitoring.
    Technical Specification
    Model DHI-HY-GA40A
    Gas Type Methane (CH₄)
    Alarm Threshold 10% LEL
    Response Time ≤30 s
    Supply Voltage DC12V
    Power Consumption ≤0.8W
    Output 1 valve output, 1 relay output
    Operating Temperature –10°C to +55°C (+14°F to +131°F)
    Relative Humidity ≤95% RH (non-condensing)
    Warm-up Period 180 s
    Alarm Method Visual and audible alarm
    Alarm Sound Output 70dB (A) at 1 m (3.28 feet)
    Silence Support
    Dimensions 86.6 mm × 86.6 mm × 29.2 mm (3.41" × 3.41" × 1.15")
    Installation Wall mount
    Certification CE

    Datasheet

    HY-GA40A

    ENpdf4/13/2024

    Kullanım Kılavuzu

    HY-GA40A

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    HY-GA40A

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    HY-GA40A

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    HY-GA40A

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    HY-GA40A

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    HY-GA40A

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    HY-GA40A

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    Teknik Çizim

    HY-GA40A

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    Fotoğraf

    HY-GA40A

    png3/14/2025

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