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![Aiphone KB-3HRD Video Door Phone - 4" TFT LCDFull-duplex - 2-wire - Door Entry, Building, Home, Office, School (Fleet Network) Aiphone KB-3HRD Video Door Phone - 4" TFT LCDFull-duplex - 2-wire - Door Entry, Building, Home, Office, School (Fleet Network)](https://cdn11.bigcommerce.com/s-xwx16vh8tc/images/stencil/500x500/products/407659/1899116/1018875216__35725.1714021457.jpg?c=2)
Aiphone KB-3HRD Video Door Phone - 4" TFT LCDFull-duplex - 2-wire - Door Entry, Building, Home, Office, School (KB-3HRD)
Marketing Information: Sub monitor for KB-3MRD master. Max of 4 sub monitors allowed per system. The KB-3HRD sub monitor allows for the same functionality as the master.Communication Mode:...
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