4.3" two wires Intercom system, # RL-617LB43
- - 4.3” TFT wide screen with low power consumption, no radiation and high definition.
- - Electric or magnetic lock release.
- - Talking volume, images’ brightness and chroma adjustable.
- - Two-wire non-polarity twisted pair connection.
- - 16 chord melodies for option.
- - Secondary doorbell function.
- - Main/sub unit setting option.
- - Room number editing function.
- - Do Not Disturb function
- 4.3” TFT wide screen with low power consumption, no radiation and high definition.
- Electric or magnetic lock release.
- Talking volume, images’ brightness and chroma adjustable.
- Two-wire non-polarity twisted pair connection.
- 16 chord melodies for option.
- Secondary doorbell function.
- Main/sub unit setting option.
- Room number editing function.
- Do Not Disturb function
