The environmental meter is a very easy-to-use measuring device. Audible alarm with 85 dB and detects combustible gases and emits a vibrating alarm. Thanks to the semi-rigid hose on the gas detection device, the sensor can be aligned in almost any position to reach even inaccessible places. This makes the gas detection device an ideal measuring device for employees who want to detect sporadically escaping gases (testing of plants during a tour of the plant, checking engines and supply lines, testing gas supply lines). A manual setting of the environmental meter is not necessary as the gas detector automatically calibrates. Rechargeable battery for mobile use. Durability of the sensor about 5 years. - Testable gases: Acetaldehyde, Ammonia, Benzene, Ethane, Ethanol, Ethylene, Formaldehyde, Hexane, ISO-butane, Methane, Propane, Xylene, Hydrogen sulfide, Toluene and Hydrogen - Sensor changeable