The meter arrived this afternoon. Says "counts", not the other word.
Fit and finish are surprisingly good. Has a nice heft and not a cheap hand feel.
Tested it on my toaster cord. AC current reading drifts 10% depending where in the clamp aperture the conductor is. I centered the conductor and kept it parallel to the axis of the clamp opening for measurements.
I compared it to a P3 "Kill-A-Watt" with true RMS measuring power meter rated 0.3% typ., 1% max AC current accuracy.
Manual here:
http://www.p3international.com/manuals/p4400_manual.pdfToaster after warm-up:
Chinese clamp meter: 7.5 amps
Kill-A-Watt: 8.1 amps
So clamp meter looks 7.5% low
Stick a 10A10 diode in the cordChinese clamp meter: 4.6 amps
Kill-A-Watt: 5.5 amps
So clamp meter looks 16% low on an asymmetrical waveform of half-wave rectified AC sine.
Conclusion: Feels nice in the hand, but it's junk. (Not that I was expecting it to really be true RMS, as advertised.)