door phone installation, Door Phone Installer malaysia, DP-201LA malaysia, commax door phone supplier, Commax Interphone supplier
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Function:
- Talk with a visitor
- Door release
- 2 wires with non-polarity
- AC 12V Power enable with Door release button
Specification:
- Power source AC 220V, 50Hz only
- Mount type Wall-mounted type
- Wiring Call: 2
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