Gas Alarm Detector BENETECH GM8800 Leak Tester, GM8800A/B

The BENETECH GM8800 is a handheld combustible gas leak detector with a 16-inch flexible gooseneck probe and sound and light alarm, for tracing gas leaks at home or at work. The GM8800A runs on 3 × C batteries in a larger 220 mm body; the GM8800B is lighter, runs on 4 × AA batteries and adds a sensitivity control knob and earphone socket.

Compare the Models

Shared specifications

• Handheld combustible gas leak detector (not a fixed alarm)
• 16-inch flexible gooseneck probe
• Sensitivity: 50 ppm methane; response 2 s
• Sound and light alarm
• Battery life: about 8 hours continuous use

FAQ

Which model should I choose?

Both have 50 ppm methane sensitivity, a 2-second response and a 16-inch gooseneck. The GM8800A uses 3 × C batteries in a 220 mm body (297 g). The GM8800B is smaller and lighter (177 mm, 230 g), uses 4 × AA batteries and adds a sensitivity control knob and earphone socket.

Can I use it as a gas leak detector for home?

Yes. It is a handheld detector for checking combustible gas leaks around boilers, hobs, meters and pipe joints. It is not a fixed alarm, so keep your installed gas alarms.

How do I find a gas leak with it?

Switch on in fresh air and let it warm up for about 60 seconds, then move the probe slowly along pipes, joints and valves; the alarm becomes active as gas concentration rises. If you smell gas, leave the property and call the gas emergency line.

What batteries does it use?

GM8800A: 3 × 1.5 V LR14 (C), not included. GM8800B: 4 × 1.5 V AA alkaline. Both last about 8 hours of continuous use.