In this video, I review the top 5 best gas leak detectors to help you choose the right one for your purpose. After spending 2 weeks of research and a consumer survey, I put together picks that cover different needs—home safety monitoring, contractor-grade inspections, and combo alarms that watch for more than one gas. If you want updated pricing, I always recommend checking the links in the description. I start with options like the Safety Siren Pro 4 Series Radon Detector, which is made for continuously monitoring radon levels in your home with a backlit display and alarms for dangerously high readings. Then I move into a more jobsite-ready tool like the RIDGID micro CD-100, a rugged unit with a replaceable sensor, a 16-inch flex probe, and a three-way alert system (sound, LEDs, and vibration) so you don’t miss a warning in noisy environments. I also cover the First Alert GCO1CN, which I like because it monitors both carbon monoxide and explosive gases like methane and propane, has a plug-in design with battery backup, and tends to produce fewer false alarms compared to some other detectors.