Zoyi ZT-C4 Multimeter Review and Testing

Super Tight Budget DMM Series - Episode II
Today we take a look at the dwarf-sized Zoyi ZT-C4 DMM (sold by Hasagei store on Amazon) and put it through the paces. Can a sub $9 multimeter possibly be any good? We find out.
This is the second installment in a planned series of very low cost multimeters that cost under $14.99 (or less) and have all the basic functions of an electronics bench multimeter (including capacitance).
This is an unsponsored video as I purchased the unit for the purpose of doing a fair and unbiased review of this DMM.
Zoyi ZT-C4 Product Link:
www.amazon.com/dp/B08JYX5Y4R?...
Test equipment used in this video:
Rockseed RS310P programmable bench DC power supply
UNI-T UT8804N Bench DMM
DMM Check Plus reference standard w/ L/C daughterboard
Analog Devices AD584M voltage reference standard
Fnirsi SG-003A current/voltage/waveform generator
Feeltech FY6600 arbitrary waveform generator
Elenco RS-500 resistance substitution box
Elenco RS-440 capacitance substitution box
Homemade 10x15mm PCB board w/ 35 diode/LED/resistor/capacitor components
Intro (0:00)
Series Criterion (0:21)
Unboxing (2:48)
Overview (4:12)
Battery Compartment (6:40)
Takedown (7:26)
PCB Closeup (8:35)
DMM Check Plus Test (11:14)
SG-003A DCA Test (16:00)
AD584M DCV Test (17:00)
Continuity Test (18:59)
Resistance Test (20:12)
Capacitance Test (21:33)
LED Test (27:15)
Diode Test (27:53)
Output Voltage Test (28:38)
ACV Outlet Test (29:06)
NCV Test (29:33)
Thermoprobe Test (30:41)
Frequency Test (32:12)
Pros & Cons (35:58)
Conclusions (38:18)

[@mikealpha4462]

Very comprehensive review and test. Just bought it and wanna make sure that i buy a good stuff

[@Sui778]

For what it cost, it's not a bad little meter.

[@genegl1422]

Большое спасибо за обзор. Заказал себе AliExpress.

[@yopi3426]

thank you for the detailed tests and review, I'm a newbie on electronics and searching for cheap multimeter for starter.

[@Sui778]

It's not a bad choice for a very inexpensive starter DMM.

[@miguelesquit]

Great! Thank you.

[@siavasharash5448]

How that calibration ports works???

[@siavasharash5448]

Is their any risk of damage If power it up with a 3.7 volt litium batery. I mean just 0.7 volt higher ???

[@Sui778]

I wouldn't do it.

[@siavasharash5448]

@@Sui778 no way to find that ?

[@Sui778]

@@siavasharash5448 Like I said - don't do it - you'll probably fry it.