Urmet 789/5B - Basic video door phone power unit (230V 50Hz)

Urmet 789/5B - Basic video door phone power unit (230V 50Hz)

Device used for powering video door phone systems with electronic call. With PTC self-resetting protection, adjustable timer and boosted tone generator. Calls up to 4 devices in parallel without additional devices. May switch on up to 2 Atlantico monitors