€46.87
Product "Dahua HY-GA40A Natural Gas Alarm"
Dahua Wisualarm HY-GA40A is a standalone natural-gas (methane, CH4) leak detector for home and light-commercial use. Its catalytic gas sensor continuously monitors the air and triggers an alarm already at 10% of the Lower Explosive Limit (LEL).
Key Advantages and Features:
- Natural-gas (methane) detection: Catalytic sensor, alarm at 10% LEL
- Loud built-in siren: Integrated buzzer ~70 dB(A) at 1 m
- Two control outputs: For an external fan and a gas shut-off valve
- Three status LEDs: Clear visual indication of device state
- Fast response: High sensitivity and stable operation, few false alarms
- Easy wall mounting: Compact housing for indoor installation
Technical Specifications:
| Parameter | Specification |
|---|---|
| Detected gas | Natural gas / methane (CH4) |
| Sensor type | Catalytic gas sensor |
| Alarm threshold | 10% LEL |
| Sound level | ~70 dB(A) at 1 m |
| Outputs | 2 (external fan + gas shut-off valve) |
| Status indication | 3 indicator LEDs |
| Power supply | 12 V DC |
| Housing | PC/ABS, white |
| Installation | Indoor, wall-mounted |
| Dimensions | 86.5 × 86.5 × 29.4 mm |
Best suited for: kitchens, boiler rooms and small businesses using natural gas that need reliable early leak warning with fan and shut-off-valve control.
| Alarm device type: | Sensor |
|---|---|
| System: | Standalone |
Wisualarm is Dahua's alarm systems brand.
We stock standalone detectors — a smoke detector and a gas leak detector — that also work on their own, without a control panel.
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