With a wireless door alarm you won't miss anyone who entered. The alarm system will be activated when the door open more than 0.6 inches. Easy install on the door, window anywhere you want to protect. Such as your house, office or store, apartment, dorm, Cabinet, drawer, garage, etc. You will found it really helpful by below status: - Customers visit your shop - Children open the pool door, window, closet, and refrigerator, leaving his/her room accidentally. All these kinds of acts bringing harm to your baby. - Pets coming or leaving suddenly - The thief breaking into your house or garage - Any thieves try to open your Jewelry cabinet, phone cabinet in your store 130db loud alarm:Even if you are busy with something else in another room, or you are about 750 feet away from home. You can listen to the alert when the alert is activated. With remote controls:You can use the remote control to control this door alarm in another room within 50 feet. Low power consumption design, it can stand by for up to one year. Low battery reminder: When the battery is low, the door alarm will sound an alarm. Remind you to replace the battery in time. Package: Magnetic sensor *1 Remote control*1