I bought this unit primarily to test off circuit capacitors which seems simple enough but the readings I get are totally out of range, so I asked Matrix for help. They wanted to know what frequency range, impedance, etc. I need. I tried to contact her several times but first her website was down, then her mailbox was full and now I can't contact her through Revain. Maybe I got a low-quality block, I probably don't know what I'm doing and how to use the tester, but the lack of technical support (in China) is practically nonexistent. I would not recommend this item, will stick with my old trusted Sencore LC-103.
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