Mini Wireless Door & Window Magnetic Sensor with Burglar Alarm Bell

Listing ID #1823118

We are offering mini wireless door magnetic sensor.
Product features :
dimension: 65 x 30 x 20mm
weight: 32g
color: white
compact design, no wiring required
high sensitivity can be used to protect people against stealing
easily mounted by adhesive tape to window or door
electronic magnetic sensor detects entry
alarm is activated when the two pieces are separated
90 db to 105 db loud, instant alarm
convenient handy onoff switch
powered by 3 x 1.5vlr44ag13 button cell
portable enough to take with on business trips and vacations
operation instruction
peel off the adhesive tape, attach the main sensor on the door window and attach the magnetic stick adjacent the main sensor on the frame.(the arrowhead side to the sensor)
test the setup by switching on the system and see whether the alarm can be triggered by opening the door window