Alecto GA11 Carbon Monoxide & Natural Gas Detector - White

The Alecto GA11 is a dual-sensor gas detector that continuously monitors for both carbon monoxide (CO) and natural gas (methane), providing early warning against two of the most dangerous household gas hazards. Its catalytic combustion sensor detects natural gas at just 10% of the lower explosive limit, while the electrochemical CO sensor responds to concentrations from 30 ppm upward, triggering an alarm louder than 85 dB at one metre.

Advantages

The GA11 combines two critical gas detection functions in one compact unit, eliminating the need for separate devices. The clear LCD shows real-time CO concentration from 0 to 999 ppm, so you can see exactly what the detector is reading. The built-in test button and LED indicators for power, alarm, and fault make it easy to verify that the unit is working correctly at a glance. With a CO sensor lifespan of 7 years and a gas sensor lifespan of 5 years, this detector offers long-term reliability.

Suitable for

• Homes with natural gas appliances such as boilers, stoves, or water heaters
• Properties where carbon monoxide risk exists from any fuel-burning equipment
• Landlords and property managers needing certified gas safety devices
• Anyone wanting a single wall-mounted or plug-in detector for dual gas protection

Key specifications

• Detected gases: Carbon monoxide (CO) and natural gas (methane, CH4)
• CO sensor type: Electrochemical; Gas sensor type: Catalytic combustion
• CO alarm levels: 30 ppm (120 min), 50 ppm (60–90 min), 100 ppm (10–40 min), 300 ppm (<3 min)
• Natural gas alarm level: 10% LEL
• Alarm volume: >85 dB at 1 metre
• Power source: AC 230 V / 50 Hz (mains powered), power consumption <3 W
• Operating temperature: 0 °C to 50 °C; Operating humidity: 10% to 95% RH (non-condensing)
• Display: LCD with CO concentration (0–999 ppm) and status
• Sensor lifespans: CO 7 years, gas 5 years
• Installation: Wall-mounted or plug-in, 1.5 m cable length
• Certifications: CE, EN 50291-1:2010, EN 50194-1:2009
• Features: Test button, LED indicators (Power, Alarm, Fault)

Recommendations

For maximum safety, install the GA11 near potential gas sources such as the kitchen or boiler room, and test the unit monthly using the test button. Replace the detector after 7 years or when the sensor end-of-life signal appears.