i need to measure current(power) on a 230V AC power line, without soldering anything onto the line itself. The power draw is from 10 to 100W so lets say max 0,6A Ipeak. And i wish to have 5W or better resolution(20mA or better). So far i have tested several contact-less solution like ATO-63-B225-D10 and HO 50-SP30, they work great above 100W or 200W and are cheap, but the problem is that they are designed for higher currents/power so at my low ones, they have to bad sensitivity. Something like HO 8-NSM/SP33-1000 would be perfect (80mV/A output), but for this i need to solder it on the power line, which would void certification on the final product.
I am asking if anyone knows of a solution for my problem.
Thanks in advance.