Weatherproof door unit for TP12AC. How to use: Room to door. Visitor press call button on DRDW2N to ring up all TP12AC room unit (two tone chime sound). Tenant pick up TP12AC's handset to talk with visitor.

This package consist of 1 unit DR2K (as door unit) and 1 unit DP2HP (as room unit). Door unit is typically installed near the door. Room unit is typically installed inside a secured room. How to use: Visitor press button on door unit to ring room unit inside. Tenant pick up handset on room unit and talk to visitor. Upon confirming visitor identity, just press the button on room unit to open door. Volume can be adjusted using a knob on room unit.

This package consist of 1 unit DR2K (as door unit) and 2 unit DP201R (as room unit). Door unit is typically installed near the door. Room unit consisting of a master and sub station is typically installed inside a secured room.

Linear power supply with backup battery 12V, 3A. Built in regulator and battery charger

Professional AC/DC Adaptor

Unitronic 422 Cable Low Capacitance, Data Highway ( RS232, RS422, RS485) & UL approved