Radio Shack Burglar Alarm interface module. There is a 19-page small manual also included as seen in the last 2 pictures.
My husband bought this. The original price sticker on the box is $39.95, but he bought it on sale. He was a physics professor, an electrician, and owned a security systems company In Canton, Ohio so he knew about these items. I DO NOT!!
At 77, I've downsized and hope someone else can use this item.
Items have always been stored in our smoke-free and pet-free home.
For other interesting inexpensive memorabilia, (items make great gifts) please visit our e-bay store by clicking on:
Visit store: TECHLINK