As far as a watt meter, I use this:
https://www.amazon.com/gp/product/B01MRZAFAF/ref=oh_aui_search_detailpage?ie=UTF8&psc=1There are tons of similar ones out there all under $20.
You really have to install it next to/inside your electric panel so it's not as easy as a kill-a-watt but I looked forever and couldn't find a 220v plug and play. This little watt meter does a decent job of tracking my usage so i can gauge how much I'm spending on electric. I'm comfortable with such work, having wired most of my house, and did I installed the meter myself. No idea what an electrician would charge to hook it up. It took me ll of 10 minutes, so probably not much.
Here's where I put it:
https://imgur.com/a/ZIGwGFor the record, my 13.5T-S9 using an apw3+ at 220v pulls around 6 amps which works out to 1385w - 1390w according to the meter (1392w at the time of the pic). I have noticed that when it's a bit warmer, it draws more power, but I've never seen it above 1405w
Just my 2 cents. Hope it helps.