QOLTEC natural gas leak sensor CH4 detector NG 85 dB alarm LED

The QOLTEC natural gas leak sensor CH4 detector NG 85 dB alarm LED is a fixed-point methane detector designed for early detection of natural gas leaks in residential and small commercial environments. The unit continuously monitors ambient air for methane (CH4) and provides an audible alert at 85 dB together with an LED indicator when gas concentration exceeds the built-in alarm threshold. The compact housing and straightforward indicators allow easy placement near potential leak sources such as gas stoves, boiler rooms or gas meters.

Advantages

The detector offers continuous passive monitoring without the need for complex setup, combining an 85 dB audible alarm with a clear LED visual signal to help occupants quickly identify a hazard. Its design focuses on simple installation and reliable detection of methane, enabling timely response to leaks. The device is suitable for indoor use and intended to complement existing ventilation and safety measures rather than replace professional gas safety systems.

Suitable for

• Homes with gas cooking equipment
• Small apartments and rented flats
• Boiler rooms and utility closets in small buildings
• Workshops or commercial spaces with gas appliances

Key specifications

• Target gas: Methane (CH4)
• Alarm sound level: 85 dB
• Visual indicator: LED alarm/status light
• Intended use: Indoor fixed-point leakage detection
• Power supply: mains-powered or battery-powered options (refer to product variant)
• Operating environment: residential and small commercial spaces

How to use

Install the sensor at an appropriate height and location near potential gas sources, following the manufacturer’s installation instructions and local safety guidance. For methane detection, position the unit where gas is likely to accumulate—typically close to appliances or meters—while avoiding obstructed or enclosed areas that could impede airflow. Connect power as specified for the chosen variant, perform any required initial checks or self-tests, and verify that the LED and alarm respond to test conditions before regular use. If the audible alarm sounds and the LED indicates an alert, evacuate the area and follow emergency procedures such as shutting off the gas supply, ventilating the space, and contacting the gas supplier or emergency services.

Usage recommendations

Place the detector according to local codes and the manufacturer’s guidelines, test it regularly to ensure proper operation, keep it free from dust and obstructions, and do not rely solely on a single device for full gas safety — use it as part of a broader safety plan including proper ventilation and professional maintenance of gas appliances.