Coliter ® Gas Alarm for Natural Gas and LPG, 220V, Audible Warning
AQ901 Gas Alarm – Wall-Mounted Natural Gas and Liquefied Petroleum Gas (LPG) Detector with Audible Alert
The Coliter® AQ901 Gas Alarm is a wall-mounted safety device engineered to detect leaks of natural gas (methane) and liquefied petroleum gas (LPG/propane) in residential kitchens, boiler rooms, and commercial settings. Equipped with a high-sensitivity semiconductor sensor, it triggers a loud 85 dB audible alarm when gas concentrations reach dangerous levels, providing early warning to prevent fire, explosion, or asphyxiation hazards. Designed for 220V AC power supply with a low-power standby mode, it features a compact, durable housing and simple one-button operation. The unit meets relevant safety standards and is ideal for installation near gas stoves, water heaters, or gas pipelines where reliable leak detection is critical.
Installation diagram
Product Description
Technical Specifications
Working Voltage: AC 220V/50Hz
Standby Power: < 1W
Alarm Power: < 3W
Measurement Range: 0～16% LEL
Alarm Concentration: 8% LEL
Response & Recovery Time: < 30s
Operating Humidity: 93%±3% RH
Operating Temperature: -10℃～50℃
Detectable Gas: Methane, Propane
Compliance Standard: GB 15322.2-2019
Service Life: 3 Years
Product Dimensions: 122 × 68 × 35.5 mm
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Faq - Frequent questions
Introduction to Gas Safety Alarm Cut-Off System
Coliter®’s Gas Safety Alarm Cut-Off System provides automatic, fail-safe protection against gas leaks in residential and commercial settings. The system integrates the AQ901 combustible gas detector with the DC301 emergency shut-off solenoid valve—triggering an audible alarm and instantly cutting off the gas supply within seconds of detecting methane, propane, or natural gas. The DC301 valve features a brass body, 24V/220V options, and manual reset, while the AQ901 offers high-sensitivity semiconductor sensing and wall-mount installation near potential leak sources (e.g., stoves, boilers). Certified to national gas safety standards, this plug-and-play system prevents fire, explosion, and poisoning risks—ideal for kitchens, boiler rooms, and rental properties requiring code-compliant gas safety.
