I recently purchased the emonTx V3 and I’m trying to calibrate the readings. I’m running a space heater and have a few monitoring devices setup for reference, but I’m not sure to trust. Here’s the readings:
5.91A - Fluke 15B RMS meter in series
6.08A - Cheap clamp-on RMS meter
7.10A - “Killawatt” device
7.07A - emonTX out of the box
I wanted to trust the two meters, but out of the box, the emonTX is really close to the killawatt device. Any ideas on who to trust?