2x Magnetic Door/Window Sensor Alarm Switch

Product Name: Magnetic Door Sensor Material: Plastic, Electronic Parts Size: 2 1/2 Inch x 11/16 Inch x 3/4 Inch (L x W x H) Color: White Weight: 42g Use in apartment, hotel, office, etc. The entry alarm adopts the magnetic sensor to detect a door or window entry. Once the two ...Product Name: Magnetic Door Sensor Material: Plastic, Electronic Parts Size: 2 1/2 Inch x 11/16 Inch x 3/4 Inch (L x W x H) Color: White Weight: 42g Use in apartment, hotel, office, etc.

The entry alarm adopts the magnetic sensor to detect a door or window entry. Once the two alarm parts are separated, it will alert you that someone is coming Package Contents: 2 x Magnetic Door Sensor (2 parts) 8 x Screws Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.

The measurement allowed error is +/- 1-3 cm.