To add this and several other devices came in a package from a company "Presence" as part of a pilot from a electric company BGE. The pilot kit provided ZERO documentation, other then plug in their hub and hit the pair button.
I'm trying to get these to work with hubitat, Googling the pn number brings up some FCC images but nothing else. (and don't understand enough of that to determine the protocol)
These cheap no-name sensors leave something to be desired in their documentation. They are either confused about what they are building, or someone filled out the (Official Govt. Forms of all things!) wrong.