2 wires Audio door phone, RL-3203
- - 2 wires connection
- - 16 melodies for option
- - Metal panel outdoor unit
- - High-quality circuit for clear voice
- - Electric-controlled lock release function
- - Talking distance up to 100m
- - Easy installation and operation
- 2 wires connection
- 16 melodies for option
- Metal panel outdoor unit
- High-quality circuit for clear voice
- Electric-controlled lock release function
- Talking distance up to 100m
- Easy installation and operation
