Disposable gas detectors are single gas detectors with limited lifespan (usually 2 or 3 years depending on the device). Once it is powered, it won't turn off and will be monitoring continuously without any battery charging. When the detector's life is over, the device turns off and can't be used anymore. To avoid any user surprise, the remainang lifespan of the disposable gas detector is displayed on the monitor.
Economical and very easy to use, disposable gas detectors are mainly found in O2 detection (lack of oxygen), CO detection (carbon monoxide), H2S detection (hydrogen sulfide) and recently for ammonia (NH3) , hydrogen (H2) and sulfur dioxide (SO2).