DP-2K+DR-2K Audio Door Phone
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Audio Door Phone DP-2K : Product Function : Talk with Door Station Door Release , Material : Plastic , Wiring : Door – 2 wires, Door Release – 2 wires , Voltage : AC 220V DR-2K : Function : Call residential station, Material : Die casting panel Flush mount type, Voltage Power is supplied form Room Unit Approval : UL, FCC, CE