***** **********Best Quality Guranteed. *****Security Alarm, built-in sensor detects vibration and instantly alerts you of a potential break-in and scare away burglars with 125dB loud alarm. *****Unique Roller Vibration Sensitivity Ajustment, will not go off in rain, wind, etc. Help to prevent false alarms. *****Ultra-thin ( 0.35 inch) design. Perfect for home, office, garage, RV, dorm room, warehouse, Jewelry Shop, safe.
*****Easy Installation: No wiring needed, simply peel and stick an alarm on anywhere you need.
*****Low Battery Warning: The sensor alarm can be used for one year (stand by) without changing the battery frequently. When the battery ( 3 LR44 batteries included) voltage is too low, the alarm will DIDI alert. Remind that you need to replace the battery. Don't worry about not working.