DeNova Detect Natural Gas Alarm
The battery-powered Denova Detect eliminates the nuisance and eyesore of a dangling cord. Moreover, it can be mounted higher up on the wall, helpful since natural gas is lighter than air and therefore rises towards the ceiling in enclosed spaces. The UL 1484-listed gas detector runs on a pair of lithium batteries with a claimed run-life of 10 years. “The device is easy to set up and mounts to the wall with the provided anchor and screw,” says DiClerico, who is in the middle of an extended field test at his home.
According to the brand, the advanced sensor technology embedded in the detector operates at a very low threshold, meaning you’ll be quickly alerted to any potential gas leaks. We also like that the voice alerts deliver loud, clear warnings in both English and Spanish. Just keep in mind that it's only able to detect methane, so you'll need another detector to pick up on other gases, including carbon monoxide.
Source: Good Housekeeping