A CO2 leak detector is a device that uses carbon dioxide gas to identify leaks from a distance. They are often used in places where workers might be exposed to toxic gases, including during activities like painting, fumigation, fuel tank refilling, landfill operations, construction work and entering confined spaces. The devices have sensors that detect the presence of gases and emit a loud alert when a dangerous concentration is detected.

In many cases, the devices can be used to test for a variety of gases. This includes combustible and non-combustible gases, including carbon monoxide. They can also be used to test for hydrogen sulfide, ethylene oxide and other chemical compounds.

CO2 Leak Detectors: Safeguarding Your Home from Silent Threats

Choosing the right device depends on what kind of gas you need to detect and the level of precision you require. Combustible gas detectors can be very accurate and provide a high resolution, while non-combustible gas detectors typically have a lower detection limit but are less precise.

The Techamor Yeezou is arguably the easiest to use of all the gas detectors on our list, with a bright yellow design that’s easy to spot and a digital display. It also takes only three minutes to warm up and go through a self-test, making it perfect for quick testing. The tester’s probe is a bit longer than some other models, though, which might make it harder to get into tight spaces.

Another model to consider is the Amprobe GSD600, which automatically calibrates when you turn it on and can be ready for use in under a minute. It has a 17-inch long probe that allows you to inspect appliances and piping throughout the house, including hard-to-reach areas. It’s also compatible with most existing carbon monoxide and combustible gas detectors, so you can use it to check your current setup.