2pcs Wireless Magnetic Door and Window Alarm Sensor with 2 Remote Controls for Home Security System, Child Safety, Anti-Theft, Anti-Burglary Detectors, 130dB Siren

Ensure the safety of people and property: The door and window alarm reaches a volume of 130 dB, sounding when the door is opened. This can not only cause a huge shock to burglars but also wake you up from your sleep to prevent a terrible accident. A door and window alarm with wide applications, ideal for homes, offices, hotels, apartments, garages, dorm rooms, or even RVs.

Use the remote control to control four functions: The door and window alarms are powerful. You can use the remote control to arm, disarm, change the ringtones, and activate emergency functions. It's very convenient. You can adjust it according to different scenarios, and even press the emergency function. The alarm sounds immediately and can be used when you call for help in an emergency.

Long and long standby time: The anti-theft alarm can be used for a year without frequent battery changes.

When the battery voltage (each door alarm uses 2 AAA batteries) drops below 2.1V, a beep will sound. Don't worry if it's not working. The battery is easy to buy and replace. (Our siren does not include batteries.) Operating Principle: When the closing distance between the unit and the magnetic strip is less than 1 cm, no alarm sound will be emitted; when the separation distance between the unit and the magnetic strip is greater than 1 cm, an alarm sound will be emitted. Therefore, when someone illegally opens the door or window (the unit is separated from the magnetic strip), the alarm will immediately emit a high-pitched sound. Easy to Install with Double-Sided Adhesive Tape - Comes with double-sided adhesive tape. Easily mounted on the window or door using the adhesive tape. No wiring required! No screws needed! You can install this alarm on any window and door, drawer, door, and other flat surfaces. PS: The remote control can be used in an open space at a distance of approximately 15m.