The DP-28M door box is manufactured in aluminum. The non-mechanical sensor buttons brings an even higher technology advance to this already amazing product. This is the perfect door station box for a 6 multi-unit entryway. This door station has an Electrical Lock Controller built-in.The Electric Lock Controller enhances the Doorbell Fon system by providing a dry contact closure when you hit the star key on your telephone. This allows you to trigger a doorstrike,unlocking a door or gate after answering the door intercom call.A door strike and transformer are needed to complete this function. You can purchase these items at your local home store.

The DoorBell Fon DP28NBN Door Station mounts with Nutone brand rough-ins.Additional brass door intercom station for the Doorbell Fon System.Allows visitor screening from a second entry location.This door station is brass.

This door box is manufactured in solid, anodized aluminum.A non-mechanical sensor button brings an even higher technology advance to this already amazing product.The Perfect add-on box for an additional entryway.Installs using a single pair of wires.