Aiphone C-ML/A ChimeCom Master Intercom with Door Release Button

Price: $122.00 - $115.51
(as of Feb 27, 2023 17:10:31 UTC – Details)

Door release button controls an electric strike (sold separately) to remotely unlock the entrance for a visitor
Listening feature allows the master intercom operator to receive audio transmission from the door intercom at any time
Adjustable audio volume
Can be battery powered to facilitate installation where power outlets are not accessible