Wcakes Wireless Door Window Magnetic Sensor House Entry Burglar Alarm System Independent Personal Wireless Security Burglar Alarm Bell For Home Security

2. High-precision materials, never false alarms. When the distance between the host and the magnetic strip exceeds 10mm, an alarm will be issued immediately.

3. Low voltage reminder to remind you to replace the battery in time to protect the safety of you and your family at all times.

4. When someone come in and open a door or window, making the gap more than 0.5 inches, this product will immediately send out an alarm.

5. Remind you immediately when someone come in. Prevent theft when no one at home, and the loud alarm will scare the thief so that you can sleep well at night without worrying about the intruders ------------------------------------------------------------ Specifications Size：7.5*3.9*1.2cm ------------------------------------------------------------ Package List Door and window alarm*1

3x button batteries (include) ------------------------------------------------------------ Notes 1.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.