Extel Multipro 3 two-family intercom, indoor 2-wire collective audio intercom

Specifications:
-Integrated 2-wire intercom (lock and automation) for 2 families with 2 white handsets
-Door panel finish in ultra-flat brushed aluminum surface with visor included and possibility of CB BUS PRO 3 extension.
-Simple installation and wiring thanks to integrated wall mounting
-Double lock control / electric lock and gate automation
-Call button and illuminated label holder
-Does not require additional power to control an electric shot or lock
-Possibility of installing up to 8 handsets on a single external panel (2 handsets per slot in 4 slots) (CB BUS PRO 3)
-Intercommunication function between 2 handsets of the same unit
-Code:710016