Volume Adjustable ,0-120DB alarm or ding-dong sound. It can be used as a doorbell.
#1 Instant alarm mode(It will alarm loudly if the door is open, and it will stop as soon as your door is closed)
#2 Entry alert mode (Rings“Ding dong” once as a welcome tone )
#3 Door closing reminder mode(Emits "bibi"sound every 10 seconds to remind you by repeated sound until the door is closed).
#4 Instrude alarm mode (Alarm will last for 1 minute if your door is being open)
2 Installation Ways: Comes with double-sided adhesive and screw bag, install it on the door and door frame,or screw them on the door,remember to keep them less than 0.6 in apart.
Easy to use: ON/OFF button, Volume button, press the set key choose the working mode by the "bibi" sound, after the mode is selected,it will work well, our manual have more details.
