Is there a way to see a devices z-wave signal?

[JasonJoel]

The LWR RSSI is OK. Generally >10 dB is desired. Positive # good, negative bad.

My z-wave frustrations - mesh issues?

It is the received signal between the end device calculated across all the hops and calculated against the background noise level.. So a negative number means your signal is lower than the noise level, which means that at a minimum you will have a lot of re-transmits from dropped packets due to the receiver not being able to get the packet cleanly. .

@david9723

BTW how do i know if i already have a repeater?

In the simplest, but not 100% technically correct, terms - any zwave device that is battery powered is not a repeater, and all others are.