1、With anti‑dismantling function, periodic self‑function status detection and periodic performance status report to the alarm host. 2、It can emit arming and disarming response sounds, and can be used with the host, door sensor, emergency button, etc. to play the role of treble help and deterrence. 3、Independent super loudspeaker design, large alarm volume, loudly sound, universal red alarm light setting, strong deterrent. 4、Suitable for the safety of residential house, farm, villas, hotels, markets, boarding house and other places where requiring security alarm. 5、The use of high‑quality materials, with certain flame retardant properties, can be installed in a variety of ways, flexible and convenient. 6、Streamlined appearance design, beautiful appearance and decorative. 1 x Sound and Light Alarm1 x Instruction Manual Condition: 100% Brand NewItem Type: Sound and Light AlarmMaterial: ABSColor: White+RedSize: Approx. 20.2x 11.3x 5.5cm/8x 4.4x 2.2inWeight: Approx.291g/ 10.3ozCommunication Mode: Wired connectionAmbient Temperature: -25 - +55 (℃)Environmental Humidity: ≤5 - 95 (%)Power Supply: 12 (V)Application: Infrared alarm special warning signal