Détecteur de fumée autonome à double technologie

•Dual-light sensing technology for reducing false alarm caused by vapor. •Alarm indicating buzzer, sound level ≥ 85 dB @ 3 m (A-Weighted). •Powered by lithium battery, long battery life under normal operation. •Supports test feature to verify whether the device is working properly. •Supports multiple alarm types: low voltage alarm, tampering alarm, maze dirty alarm. •Constant temperature alarm/Differential temperature alarm.