DETECTS WINDOW VIBRATION - Instantly alerts you of a potential break in with loud 100 dB alarm
UNIQUE ULTRA-SLIM DESIGN - Perfect for any window (including sliding windows) in your home, office, garage, dorm room, or even RV
VIBRATION TRIGGER TECHNOLOGY - Built-in vibration sensor perfectly tuned - will not go off in rain, wind, etc. NO FALSE ALARMS
Superior adhesive backing for optimum sticking power
Includes 3 x LR44/AG13 button cell batteries