Model CA-DXH is an optional accessory for CentralAlert™ wireless notification system (for CA-360 or CA-RX). User simple hangs the unit on a door knob. It is very sensitive; any door knocking or the turning of the knob can trigger the unit.
This unit is ideal for hotel kit or dormitory use where a temproary installation is needed.
Detects the vibration of your existing door bell, door chimes, door intercom announcer or theknocking on your door, it then sends a signal to trigger the CA-360 to alert you
Simple to install with adjustable sensitivity to avoid false alarms
2.5mm Jack for direct connection to your existing doorbell/door chime