120 LOUD ALARM:
Loud 120 decibel alarm sounds when door or window opens, helps deter intruder and alert residence, prevent kids and babies going out the house, protecting your home or office whether you are in or out.
3 ADJUSTABLE SETTINGS off/chime/alarm:
It has 2 types of alarm modes--#Alarm: ordinary alarm mode; #Chime: wireless Doorbell mode (“Ding dong”, rings once as a welcome tone )
Size: 6.2*3.2*1.6cm, ultra-slim door and window alarm with Built-in low battery test button to easily check battery life, Includes 4 LR44 batteries for each alarm. Perfect for home, garage, apartment, dorm room, mobile home, RV, office, and more
Easily mounted by adhesive, tape it on the window or door then all is done! No wiring is needed! No screws are needed! Completely DIY! (NOTICE: make sure the gap between the alarm and magnet part is within 1cm..)