Ring Mailbox Sensor - not pairing

[CrisD]

It looks like this sensor needs the Ring Bridge, which HE does not support.

Ring path and step lights

Some sensors/extenders are but not those devices. I think "requires Ring Bridge" is your 1st sign it is not Z-Wave. You can also check the "Power and Connectivity" for Z-Wave (250-foot range to Base Station) not Wireless connection to Ring Bridge