This mhine mainly has the anti-theft alarm and a doorbell function.Alarm Function---When the Infrared Sensors , Door Sensors ,Smoke Detectors or any other cessories are triggered, the host will be issued alarm sound. Doorbell Function--- Doorbell function mainly consists of doorbell, host, power, remote control. When you press the blue button of the doorbell, the host will send out the sound to remind the owner to open the door.
Condition:100% brand new and high quality!
Item style:anti-theft alarm system
Size: L * W * H 12mm * 10.2mm * 11mm/0.5in*0.4in*0.43in
the use of the environment: stability: 0 -55 , Relative Humidity: 40% -70%