Protection Device Home Security Entry Detector Door Window Alarm Burglar Sensor Anti Thief System

Label:Yes Alarm Sound:90 db Size:The main part: length 3.1cm, width 9.1cm, height 1.9cm Requires 2 AAA batteries (not included) Weight:35g Material:PVC Color:As shown by photos Please turn off the switch when you don't need. Fix the main unit which has on-off switch at the side of the door&window. Open the battery cover,Match positive and negative signs and Insert 2 triple A batteries correctly, close the battery cover. 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. Remove the batteries to prolong the lifetime of the product/batteries if it will be set aside for a long time.

Package Included: 1* Probe Host (Without Batteries), 1* Door Sensor, 2* Double Side Tape.