4 Pcs Window Alarms for Home Security Window Glass Break Sensor Alarm 100db Loud Security Door Window Vibration Alarm Anti Theft Vibration Detector Alarm for Warning Burglars Intruder, Home Office

Features:
These window sensor alarms are compact and easy to install. They will feel a certain degree of vibration, the main device will emit a strong alarm sound, and the red LED will flash, to remind the owner of a stranger trespassing, pay attention to protection.
The window sensor alarms are suitable for a variety of occasions and environments, such as glass doors and windows, house, office, apartment, garage, dorm, hotel and so on.

Specifications:
Material: plastic
Color: as pictures shown
Size: about 2.76 x 2.76 x 0.35 inch/ 70 x 70 x 9mm

Package includes:
4 x Door window vibration alarm

Notes:
Manual measurement, please allow slight errors on size.
The color may exist a slight difference due to different screen displays.
Turn the switch to OFF position at any time to release the alarm and alarm state.