Needs no sales job
This time / frequency analyser works perfectly after it is calibrated. At the moment it displays a calibration error, which is expected.
I can't think of a more reliable brand of equipment either, so that's why I bought this brand. The only real "down side" if you want to call it that, is that there are many features and I will have to study the owners manual to know how to use it beyond the basic functions.
Verified purchase: Yes