How to use:
Door to room. Visitor press button on door unit to ring up 2 room unit simultaneously. Tenant pick up either one of 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.
Room to room. Tenant press CALL button on room unit to call the other room unit. While talking to other room unit, there will be a faint call sound on handset if some one pressed the door unit. Tenant just need to hang up and pick up the handset again to talk to door unit.
- Gentle chime sound
- Can be combined with door opener
- Easily mounted on wall & desk