Not really worth it in my case cause I have too many rigs. I use these for my 240v 30a PDUs.

https://www.amazon.com/Aeotec-Aeon-Labs-DSB28-ZWUS-Energy/dp/B0151Z3FB4

I didn't pay that price. I think I paid $50 for 2...

Then I hook them up to smartthings and then use the google sheets smart app to log data.