Set Of 3 Door and Window Alarm System Contact Sensor with Sounding Alert

Instant Window and Door Alarm Sensor: This door and window contact alarm immediately detects unauthorized entry, emitting a loud alert for 30 seconds when a door or window opens—perfect for securing off-limit areas for children's safety. Self-Contained Door and Window Alarm Unit: Equipped with an integrated alarm system, this stand-alone sensor promptly sounds when the magnetic contact is broken, ensuring doors and windows are monitored. Effortless Installation: The wireless door and window alarms can be quickly set up using the included double-sided tape. Simply place it on the desired surface, switch it on, and the alarm is armed to guard against intrusions. Compatible with both left and right-side mounting.