Ahttps://dahuasecurity.org/au/products/All-Products/Fire-Alarm/Gas-Alarms/HY-GA40Adahuasecurity.org/au/products/All-Products/Fire-Alarm/Gas-Alarms/HY-GA40A.htmlhttps://dahuasecurity.org/au/Products/All-Products/Fire-Alarm/Gas-Alarmsdahuasecurity.org/au/products/All-Products/Fire-Alarm/Gas-Alarms/HY-GA40A.html.zxrF_j02Zm OKtext/htmlutf-8gzipjxm Tue, 21 Jul 2026 10:14:09 GMTW/"a6d11-cUmZiokLfCE/08/m+EHwg6+9ySc"RZ tRZRZRZRZRZqF_jm HY-GA40A - Dahua Oceania
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HY-GA40A

Natural Gas Alarm

> High-performance sensor, intelligent and accurate detection of gas leakage, and send out alarm signal timely
> Operate stably and identify gas type effectively
> Intelligent linkage to close pipeline valve and start exhausting fan
> A built-in high-volume buzzer, 70dB (A) at 1m (3.28 feet)
> Three indicator lights for displaying device status clearly


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    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 1m (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