Product description
2. The host and the receiver will alarm when they leave more than 1CM.
3. The shape conforms to European and American aesthetics and is suitable for various doors and windows.
4. The back sticker can be peeled and pulled, is easy to install, ready to use after tearing, and will never fall off.
5. Low voltage indication, red light flashes to remind you to replace the battery.
Product name: Burglar alarm