Wireless Door Chime Alarm System (DIY), Set of 4

The wireless alarm and door chime can be used not only as a door and window entry alarm, but also as a door chime. To use as a visitor chime, move the switch to the CHIME position. When your guests attempts to enter your home, by opening the door, a pleasant chime will announce his/her arrival. The chime setting can also be used to warn you if young children have opened the door to a medicine cabinet or basement, etc. When the switch is on the alarm mode, if a door or window is opened, the alarm will sound. The alarm will stop once the door or window is closed, or the switch is turned to the OFF position.

Double function device: Door chime or a door/window alarm
An appropriate function can be selected or alarm can be switched on completely by using a switch to effectively protect under intruder entry
Ideal for homes, offices, garages, caravans, garden sheds, etc
Fixing to a window or door frame with a double sided adhesive tape
3 X LR44 Coin Cell Type Battery (Not Included)
Volume level of the alarm: 105dB
Volume level of the door chime: 80dB
Set of 4
No wiring required
Easy to install and maintain