I've been shopping for houses and found this gadget in the garage. It's up near the ceiling and I don't know what it is for. There's nothing nearby that would give any hints. My image is unintentionally rotated 90 degrees counter clockwise. I'm looking up at it.
I think I can make out 16v and 10 amps stamped on the frame. I initially thought it might be for the doorbell, but thought the garage is an unlikely place for it. I've never seen anything like this related to a garage door opener either.
The house was built in 2015. Thanks