The little buddy here is the TiaLinx Cougar20-H Whom is a surveillance robot….See Details.

Capable of detecting human presence, through anything like thick concrete walls. It uses a ultra-wideband radio frequency sensor array and focusing on biorhythmic patterns, like breathing.
it’s really for the Government, Federal or local to use:
Operated from a laptop that can be more than 300 feet away, the robot can scan through reinforced concrete by detecting reflected radio waves. It can find people who are moving or even keeping still, so the operator can see them in real time.