Serene Innovations CentralAlert Wireless Door-Bell Knock Sensor

Brand/Manufacturer: SERENE INNOVATIONS, INC.

Serene Innovations CentralAlert Wireless Door-Bell Knock Sensor detects vibration and sends a wireless signal to trigger the CA-360 to alert when someone rings your door bell. Install device on existing door chime or intercom door announcer for vibration detection or, you can attach the CA-DX to the inside surface of your door to detect the knocking on your door.

Item #	Desc	Pkg	Price	Price
CA-DX	Dimensions: 2.5" x 3.8" x 1"	Each	$74.33 $55.09

Features

Serene Innovations CentralAlert Wireless Door-Bell Knock Sensor detects the vibration of your existing door bell, door chimes, door intercom
Can be wired directly to the doorbell terminals where the electrical signal activates
Simple to install with adjustable sensitivity to avoid false alarms
2.5mm Jack for direct connection to your existing doorbell/door chime
With this method, electrical signal from your doorbell terminal activates CA-DX
2.4GHz operating frequency
Up to 200 ft operating range
Uses 2 AA alkaline batteries (not included)
Also available (separately):
-Serene Innovations CentralAlert Wireless Notification System Clock or Receiver (Code CA-360)

Specification

Particulars	Dimensions
Advanced Technology	2.4 Ghz Smart-Code
Operating Range	Up to 200ft, open space - actual distance varies according to house construction
Battery Type	2 AA size alkaline
Battery Life	Up to 10 months
Operating Temperature	+10Â°C to +30Â°C

Customer Reviews

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