LKHSYAN Door Window Alarm, 130DB Burglar Alarm Anti-Theft for Home, Office, Shopping Store Security Protection - Product Features
- Easy Install: Use the sticker to fix it on the door .
- Durable and long standby: Energy saving and power saving, standby time up to one year, using AAA battery power supply for easy purchase, easy replacemen
- High decibel alert strong deterrent: Built-in high-loudness alarm speaker, jar is issued, which can strongly scare away thieves.
- Magentic contacts working principle: When someone illegally opens the door and window (the host is separated from the magnetic stripe), the alarm immediately sends a sharp alarm sound.
- Low Battery prompt: When the battery voltage below 2.1V, the door sensor will be make \"di di di \" sound , it is time to change the battery .