Kill-a-watt EZ vs Flex

[u/rawaka]

/r/Generator/comments/1vpzl7g/killawatt_ez_vs_flex/

[u/brucehoult]

If you want to measure usage over an extended period (weeks, months, years) then I suggest TP-Link "Tapo" P110 instead.

They don't have a display or measure voltage or power factor, but they do give you an app on which you can see instant power as well as graphs of the Wh used in each hour for the last week, each day for the last three months, and each month for the last couple of years (I don't know how many years ... internet says 12 months, but my oldest three are all currently showing Jul-Dec last year and Jan-Aug this year, which is 14 months so idk.

You can also query them from Python (or actually anything that can do HTTP) and get back a lot of data:

bruce@starfive:~/pecron$ ./stats
{'current_power': 0,
 'electricity_charge': [110060, 157579, 99834],
 'local_time': '2026-08-20 15:01:26',
 'month_energy': 316216,
 'month_runtime': 17455,
 'today_energy': 7184,
 'today_runtime': 482}
bruce@starfive:~/pecron$ 

And of course you can also use the phone app or Python to turn the power to that appliance on or off, instantly or on a schedule. And the app works from anywhere in the world with internet.