FCC filings show this devices is 2.4Ghz so I would assume that anything from cheap nordic 2.4Ghz chipsets to microwave to a HackRF/BladeRF/LimeSDR/USRP will be able to bother all signals coming out of these devices.
It looks like they are flooding the area and measuring off a reflection. Nothing ground breaking.
Wouldn't this effectively act as a signal jammer for all 2.4 GHz devices if it's constantly transmitting? I'm sure your neighbors will love it when their WiFi goes down every time you leave the house!
I doubt is is going to act like a jammer. It is probably narrow in bandwidth. Your microwave also leaks a healthy amount of 2.4 GHz. That's why most wireless specs that use 2.4 GHz (e.g., Bluetooth) have the concept of channels and hop to avoid interference.
It looks like they are flooding the area and measuring off a reflection. Nothing ground breaking.
EDIT: Forgot FCC info: https://fccid.io/2AJF7