Timed Door Release Nutone 468 CLEARANCE ITEM!
A timed door-release entry for a secondary entrance to a building. You can pre-set the period of time, adjustable from 3 to 20 seconds. The timing circuit can be activated by an apartment speaker switch. Mounts and plugs into the 478 control amplifier.
NuTone Intercom Systems provide more than convenience. When applied to a multiple resident building, they add the protection tenants are looking for by restricting access. With intercom units mounted in each apartment, residents can answer their door and choose to allow access to a visitor with the door release button. No running down the hall to let in a visitor. Some systems work with multiple entrances. And NuTones full line of accessories address your buildings individual needs for postal access and directories. This easy-to-use apartment speaker provides tenants with a measure of added security. Just press the Talk button to speak and then press Listen to hear a reply. A separate switch unlocks the door for a single or dual entry building. Mounted in each apartment, tenants can stay in the safety of the apartment and still answer the outside door.