General description This Smart WiFi Door and Window Alarm Sensor features an open/close detection function and serves as an effective anti-theft solution. It can be easily installed by sticking the sensor onto a door or window, making it versatile for use as a door stop alarm, pool door alarm, garage door alarm, or sliding door alarm system. The magnetic trigger ensures that the alarm sounds when doors are opened, providing an added layer of security for children, the elderly, and individuals with dementia. Technical specifications Color: White Material: Plastic Measurement allowed error: +/- 1-3 cm Other information Package Contents: 1 * Smart Door Window Alarm Sensor Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.