5 Set Wireless Burglar Alarm Door And Window Magnetic Sens

The product information is as follows:

Name:5Set/Lot Wireless Burglar Alarm Door and Window Magnetic Sensor Alarm Smart Home Security Protection Door Window Alarm
Function introduction: It can prevent thieves from calling the police when they push open the door or window.
Can be used to prevent children from going out or opening dangerous cupboard doors

Installation method: Magnetic control type
Alarm sound: 90 decibels
The main body uses 2 1.5V AAA batteries (batteries not included)
Scope of use:
1. Doors, windows, homes, shops, businesses and other wide range of places
2. Internet cafe computer case anti-theft device
Installation method:
Open the battery cover, Match positive and negative signs and Insert2 triple A batteries correctly, close the battery cover
Fix the main unit which has on-off switch at the side of the door&window.
Attach the bar magnet to door fram/window frame with the arrow aligning with the referenc line of the main unit.
Switch to"ON" position of the main unit so as to be in alert state, it will give an 90bp alarm if the magnetic senor has been separated fron the alarm device when someone opens the door/window.
Please turn off the switch when you don't need
Remove the batteries to prolong the lifetime of the product/batteries if it will be set aside for a long time.
Material: plastic
colour: white

Package Contents:
5 x Main Body (Single body does not include 2 X AAA batteries)
5 x Magnetic Stripe

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.