A nice little DIN rail mounting power meter. Took it apart before turning it on, and aside from the 3 internal IC's being the ground off top type ( one is obviously a PIC doing the math and display side, one is a jellybean quad opamp and the last os likely a cheap ADC, so no surprise there) it is not bad, input power being provided by a capacitive divider, and with voltage sensing using 2 series 100k 0.3W 1% metal film resistors.
All in all it does what it needs, and $25 with "free shipping" was not too bad.
Shown testing it's own power draw. 10VA, 3.2W and a really bad power factor. PF does not seem to have a magnitude, it reads the same irrespective of direction of current flow through the internal sense coil. Still, goes from 0-100A and should do the job.