���Easy to use & User description��� Magnetic sensor switch detects your door or window. Easy stick installation and operation. It only takes 3 steps���1. insert 2 PCS AAA battery (battery do not contain in the box), 2. tear the double-sided adhesive on the backpack, paste the door knob alarm on your target position��� 3. press on/off switch to power on/off. Note: When the distance between the doorbell and the magnetic sensor is greater than 0.59 inches, the doorbell will emit a sound of 90 decibels or more, to alert you or drive away thieves and protect your children
���Applicable to multiple scenarios��� Easily mounted by adhesive. Type to window or door. Ideal entry warning for homes,apartments,mobile homes,offices,hotel rooms,garages,and more���
Super loud 90 dB alarm. When someone opens the door or window illegally (the relative position of the primaryan issue a strong alarm, warning the intruder to leave and remind the owner
Super suitability and stability.100% New and high quality
���HIIXHC door window alarm Package include ���It comes in 10 packs Door window alarm, stable and dustproof. Please check HIIXHC and feel free to contact us if you have any questions
