I have been unable to set Parameter 12 to zero. OK to set from 1-200 but it rejects a zero setting. Running firmware 2.3 on a ZEN05 LR (800) device. Think the firmware has a bug…
Driver interogation suggests ZEN05 is only allowing a range of 1-200:
{“num”:12,“format”:1,“size”:1,“defaultVal”:1,“range”:“1..200”,“title”:“kWh Report Threshold”,“description”:“Choose when the plug will report kWh to your hub. Value 1 = 0.01 kWh and value 200 = 2 kWh change.”},
Okay, I’m curious, @CuriousB – what hub are you using? If it’s the Z-Box, how did you do the driver interrogation? 
Hubitat is the Hub used…
I see the same range restriction of 1-200 for P12 in Home Assistant (JS UI) for the ZEN05.
Edit: Amp and Watt report thresholds have a zero, I would imagine this one should as well.
I got feedback from Zooz today. There is a bug in ZEN05 V2.3 where you can’t load parameter 12 = 0. It will only accept range 1-200. I guess it worked in 2.1 but isn’t in 2.3. Interestingly it works in ZEN04s (although its call P8 there).
Workaround options are to P12 set very high, say 200, and expect few triggers, or set parameter 18 to 1 and suppress all kWh reporting.
