CO Carbon Monoxide Detector Fire Security Sensor Voice Alert Loud Alarm Home

Features: - Loud 85 decibel alarm. - Permanent carbon monoxide sensor. - One "chirp" every 30 seconds is an indication that the battery is low(need replacement) (green LED still flashes once every 30 seconds) or the unit is malfunctioning (green LED is out ). - Alarm memory feature:If the unit ever alarms,pressing the button,green LED will still flashes once every second for one minutes and the peak alarm level electronic and verifies proper unit operational and reset the unit during CO alarm. - Green and red LED lights that indicate normal operation and alarm status. -widely used in kitchen, bathroom, bedroom, living room etc. - Detection object is CO instead of Ch4 Specifications: Model: B41997 Voltage:DC 3V Color: White Quiescent Current:15(uA) Alarm current:10(uA) Temperature:-20~50() Humidity: 15%~990% RH Transmitting frequency:315/433(MHZ) Alarm decibel: 85 Db Alarm concentration: >150 ppm Dimension:95mm X 95mm X38mm Detection object: Carbon monoxide Batteries:2 X 1.5 V AA(not include) Package Included: 1 x Carbon Monoxide Detector 1 x English manual