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1 x Dahua Wireless Door Detector Plus (Big) ARD324-W2
5mm x 19m
IP54 protection
Battery type: AA x 4
an external input and vibration analyser built-in
Ness Wireless 304MHz Reed or Ext Input RR2 100-527 K&P Generic Sirens and Relays 1 x Dahua Wireless DoorOverview The Ness Universal Transmitter is a 9V battery operated transmitter with reed switch, an external input and vibration analyser built in. The external input can be used to take inputs from normally closed reed switches or emergency buttons. This allows the connection of any type of N. C. switch or button to trigger an alarm signal. the external input can also be used to connect Nessensor vibration sensors for completely wireless vibration
