This product is No Longer Available.
The Nutone IMA-516 intercom system was a intercom only system used a lot for small offices and residential homes. While these systems are no longer available, there can be replacement options depending upon how wiring was run by the original installer. It is best to call in to discuss the options with one of our technicians 800-533-3249. The only parts available for this system is a 301T Transformer if this is the problem.