https://openenergymonitor.org/forum-archive/node/156.html

SCT013

https://learn.openenergymonitor.org/electricity-monitoring/ct-sensors/yhdc-sct-013-000-ct-sensor-report

100A - 50 mV

poor choice in life -- range of 100A is too big to be useful for home gamer (me)

30A - 1V