I found this product on banggood and couldn’t resist. It seemed like it would be an easy install in one of the many PDUs I have around the garage.
Not an affiliate link or anything like that. Just for the curious!
https://m.banggood.com/Geekcreit-3-in-1-AC-60-500V-100A-Voltmeter-Ammeter-HZ-Hertz-Frequency-Meter-22mm-Digital-Current-Voltage-Amp-Signal-Light-LED-Lamp-Indicator-with-CT-p-1548114.html?rmmds=detail-bottom-alsolike
Here are some photos of the process
Inserting the load sensor through the fuse connection wire
Overall this was an easy project, drilling the 22mm hole in the PDU was the largest pain.