I recently purchased 4 power meter plugs of 3 different types (one came in a 2 pack). Accuracy vs non-smart power meter is pretty bad.
Aeotec Smart Switch 6, Zwave Switch Z-Wave Plus Plug 15A for Home Security Automation Z-Wave Power Monitor, Without USB Port
Minoston Zooz Remote Switch Zen34, Z-Wave Plug with Energy Monitoring, Z-Wave Plus Mini Outlet Built-in Repeater Range Extender, Overcurrent Protection, Z-Wave Hub Required, Alexa and Google Assistant Compatible(MP21ZP)
NEO Z-Wave Plus Smart Mini Power Plug Zwave Socket Zwave Outlet With Timing and Energy Monitoring Home Automation, Work with Wink, SmartThings, Vera, Fibaro & more, Green&Blue 2PK
I tested these against a non-smart power meter: kuman KW47-US Electricity Usage Monitor Plug Power Watt Voltage Amps Meter with Digital LCD, Overload Protection and 7 Display Modes for Energy Saving (NO-Backlight), white
- Aeotec: matched the power meter well
- Minoston: over-reported by 10-15W
- Neo: One of the two matched the Kuman, but the other under-reported by 20W. Both have the same config/params on hubitat.
Is there something I could be doing wrong, or is it the smart devices?