doorphone supplier near me, Interphone supplier near me, Commax Interphone installation

Function:

• 2 wire connection with non-polarity from a floor distributor
• Talk with a visitor and doorlock release enable
• Power source : floor distributor

• Power source: From floor distributor
• Wiring: 2 wires with non-polarity
• Distance: 100m (0.65Ø)
• Operating temp.