For Nexa push buttons or coded door panels.
"Plus" digital installation of 4 wires.
EL642/PLUS sound module
- Sound module with independent door panel and telephone adjusting level volume.
- Removable terminal connector for easy wiring.
- Privacy on audio door open progresses.
- Electronic call with acoustic acknowledgement signal, confirming the call is in progress, the system is busy or the lock is activated.
- Connection to push button modules or keypad using small flat cables provided with the modules.
- Selectable lock activation time.
- Includes two push buttons.
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