ZOTEK ZOYI ZT-MD1 LCR Tweezers Review/Teardown

[@TYGAMatt]

I was just scrolling through various LCR tweezers yesterday, and then up pops your review. Perfect timing! Looks like a useful tool.

[@pault6533]

The firmware upgrade v1.7 adds a data log, appended each time hold is pressed. Have a go at it 😊. Thanks for the in circuit demo and high resolution view of the internals. Your description of the diode function should help a lot of your viewers understand why it’s not so good at diodes. Zotek spelled incorrectly in the title.

[@KerryWongBlog]

" Zotek spelled incorrectly in the title." - Thanks for pointing that out. Corrected.

[@zotekmultimeters4774]

Thank you sir!❤

[@zotekmultimeters4774]

Thank you Kerry! Very detailed review!👍

[@Electronic4U-david]

Thank you, Kerry😊

[@LawpickingLocksmith]

Pretty good meter: I ordered some crazy clone from Ali. Wonder what I will get?

[@pault6533]

It’s where I got mine. Not a clone😅

[@wtmayhew]

The PC board probes are pretty clever. I see they have the signal lead surrounded by shield traces. I wonder if they have an active guard as might be found on a high end meter? Over all this looks like a lot of function for the price and it looks surprisingly well made. My wishes would be to have a higher excitation voltage available and a higher test frequency at 100 KHz.

[@tonyh6309]

It seems strange, and a great shame, that the diode detection doesn't work for standard diodes given that the 0.6Vrms range with its1.72V peak-peak / 0.86V peak should be ample. Perhaps it can be fixed in software; had it worked I would have ordered one already.

[@YSPACElabs]

The 10 pin VSSOP package chip is a TI PGA113 but I don't know what the TI44 labeled chip is.

[@jspencerg]

Thorough as usual Kerry. Mine arrived with an extra pair of tweezer tips as well. Nice gadget. Much better to use than the wired tweezers for my handheld lcr meter.