The Intrasonic RETRO-D Retro Door Station is constructed of weather resistant material and can communicate with the master, room and patio stations allowing the resident to verify who is at the door before opening it.
The RETRO-D has an optional door or gate release mechanism which will unlock the door or gate from any room with a room station installed. A built in chime allows you to choose from 4 notes. A door Adapter Plate for NuTone door stations is available for separate purchase