Combination and Carbon Monoxide Alarm Detector, Dual Sensor CO Detector Battery Powered with LCD Display Sound Warning for Home,School,Office

💡【Intelligent Detection】Internal dual sensor(Combination detector&Carbon monoxide alarm), can detect carbon monoxide,other gases., 🚨【Sound-Light Alarm】After the detection of carbon monoxide exceeding the standard or fire, an alarm sound of 80 decibels was issued immediately, and the ring lamp flashed rapidly., 📶【Accurate Concentration Display】When carbon monoxide exceeds or detects fires,the screen will display the current value according to the gas concentration. Photoelectric sensor detects while minimizing false alarms., 🔋【Install Without Cable】Adopt the independent installation, abandon the tedious wiring way, install the battery can use. (Battery not include.), 🔊【Loud Sound+Flash LED light Alert】CO concentrations >100PPM, concentratioon>0.1%d/m.(High sensitive)