This box was acquired on ebay. A web search and Electronic Technical Manuals Online search found nothing. Honeywell Sensing and Control
The title on the name plate says "alarm set, anti-intrusion restricted area". Maybe this box is part of what amounts to a fancy burglur alarm, or maybe it is some type of sensor in that system. It has 3 multi-pin connectors and provision for 2 each 9 volt battries. The box appears to be hermeticly sealed by soldering the case and the use of connectors that are glass sealed.Brooke's, Military Information, Home PageOne of the connectors has 3 pins, two of which are grounds making it a good canidate for the power plug.
If you have info let me know.