Alarm & Security Systems

* Our company professionally product the Alarm & Security Systems and doorbell. We can supply kinds of doorbells with low prices & high quality

* The window and door Alarm is easily mounted by adhesive tape to window or door. Magnetic sensor switch detecs entry for protecting your home or office whenever you are in or not. Warning door/window sticker is supplied free in package opereated by 3 pcs 1. 5V LR44 button cell (batlery included in package)

1. This products is widely used in hallway, gangway of enterprise, hotel, home, supermarket & warehouse, ect.

2. One of the music has designed in Dingdong, double dingdong, 12songs, west minister.

3. Use DC power, sender use 1pc 23A 12V; Receiver use 2pcs AA batteries.

4. Remote distance: About 30 meters.

5. Frequency: 433. 92MHz.

6. The sender is waterproof.

7. With digital codes to avoid disturb.