after having a pretty bad experience with the well known chinese ESR/cap meter (it just stopped working entirely on its own after NO use, no measurement of actual devices) I cannot recommend the chinese test gear.
yes, random failures can happen with any brand of gear, but this is ridiculous! I had mine in storage (I did a house move) for nearly a year and when I took it out to start using it, it turned on once, then went out. nothing I can do will get it to turn on again. complete failure and didn't get a single day's actual use from it.
if you do buy chinese gear, realize that its a crap shoot and you may have just thrown your heard earned cash away with no recourse in getting it fixed or replaced. I sent email to the seller (aidtech_us) and so far, his 'suggestion' is to replace the batteries. a more insulting reply could not have been made (sigh) ;( yes, I checked the batteries and even used a lab supply in place of them.
if the meter gets fixed or replaced, I'll change my tone; but right now, I'm quite livid on the blatant failure of a piece of test gear that I paid good money for and expected at least ONE good use out of, let alone several years of service.
damn.