The wireless Doorbell/Door Knock and Door Chime Sensor is part of the CentralAlert Notification System by Serene Innovations. Place the Door Knock/Door Chime Sensor next to your existing chimebox or intercom system and when someone activates either device the Sensor will transmit a signal to the CA360 Transmitter and respective receivers. Alternatively you could put the Door Knock/Door Chime sensor on the door itself and if someone knocks, the sensor will detect the vibrations and transmit a signal to the CA360 system.

Central Alert receiver is required to be notified.

One year limited warranty

Features:
- Detects vibrations of existing doorbell, door chimes, door intercom announcer or knocking and sends a signal to the CA360 unit
- Easy to install with adjustable sensitivity to avoid false alarms
- 2.5mm jack for optional connection to existing doorbell/door chime (cord not included)
- 2.4GHz operating frequency
- Up to 200 ft operating range
- Uses 2 AA alkaline batteries (not included)

Product Code:
No Hanger - HC-CADX
With Hanger - HC-CADXH