Jsite Anti-theft alarm security system white sensor alarm wireless burglar alarm door window

Label:yes size: 9.

9cm power: 2x aaa battery(not included) color: white material: pvc package includes: 1pcs alarm unit+magnetic sensor features: easily mounted by adhesive tape to window or door.

magnetic sensor switch detects entry protecting your home or office whether you are in or out.

warning door/window sticker is supplied free in package.

operating by 2xbatteries(not includ) specification: 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 magnet to door fram/window frame with the aligning with the referenc line of the main unit.

switch toon 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 dont need remove the batteries to prolong the lifetime of the product/batteries if it will be set aside for a long time note: due to manual measurement, there may be an error of about 1-3cm(0.

18in), based on the actual object.

due to differences in display and lighting effects, the actual color may differ slightly from the image.