Wireless door and window detectors with remote control and batteries, magnetic anti-theft and anti-intrusion sensor

[WIRELESS MAGNETIC SENSOR]: The alarm is triggered as soon as a door or window is opened. The system activates when the door is opened more than 1.5 cm. [ULTRA-POWERFUL ALARM]: The 130 dB siren deters intruders and wakes you up with a start to prevent accidents. [EASY TO USE AND INSTALL]: Wireless remote control, easy to use. Two installation methods: mounting with double-sided adhesive or strap, no tools required. Suitable for houses, apartments, mobile homes, offices, hotel rooms, garages, and other entry alarm systems. [CHILD-RESISTANT]: This wireless magnetic door and window alarm detects intrusions and alerts you when your children open doors or windows, preventing children and pets from entering. Babies shouldn't be allowed to wander off, whether you're indoors or outdoors. Especially if you have a pool at home, installing a door alarm is essential. [RELIABLE OPERATION]: The anti-theft alarm can be used for a year without frequent battery changes. When the battery voltage (2 AAA batteries included) drops below 2.1V, a beep will sound. Don't worry, it won't work.