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๐ Discover the Power of Precision!
The YOJOCK USB C Tester Power Meter is a compact and versatile device designed for measuring voltage and current in USB-C connections. It supports various fast charging protocols and features a power-off storage function for data retention, making it an essential tool for digital enthusiasts and professionals alike.







| ASIN | B0B99Z2GJK |
| Best Sellers Rank | 69,757 in DIY & Tools ( See Top 100 in DIY & Tools ) 159 in Voltage Testers |
| Brand | YOJOCK |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 1,369 Reviews |
| Included Components | USB C Tester |
| Item Weight | 40 Grams |
| Item weight | 40 Grams |
| Manufacturer | YOJOCK |
| Manufacturer Part Number | KWS-066C |
| Maximum Operating Voltage | 30 Volts |
| Measurement Type | Ammeter, Voltmeter |
| Min. Operating voltage | 4 Volts |
| Minimum Operating Voltage | 4 Volts |
| Model Number | YJ-TC01 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Specification Met | energy |
| Style | Compact |
| Style Name | Compact |
| Unit Count | 1.0 count |
T**N
Very useful tool
Love this little device. I had a lot of chargers and cables that all seemed to perform differently with different devices. With the aid of this tool, I was able to definitively ascertain and verify the capabilities of each charger and cable once and for all.
J**T
Great power monitor for a Raspberry Pi5
I'm a keen experimenter with overclocking and added peripherals so was looking for a USB test meter to put in line with the PSU feeding my Raspberry Pi5. This has been absolutely perfect for the job. My only concern when ordering was the tiny font size used by the display, but it's absolutely pin sharp with an excellent contrast ratio making the small characters very easy to read. I believe I bought this around 5 months ago, and it's been in 24/7 use since the day it arrived without a single hiccup, and there are no signs of any display burn-in. Highly recommended.
A**R
No problems. Plugs into my short-ish universal charger USBC socket
Works fine on my iPad pro showing charging at 15V 1.2A. The other meter I've got has a short USBC plug for some reason and won't connect to the charger when plugged in. Which is why I got this one.
P**P
This usb c plugin worked ok without problems.
The display is colourful and clear with a fast refresh rate. Tha accuracy of the readings are within tolerance. To change the orientation of the display for easy readings you double click the button on the outside of the body.
A**E
Easy and quick to use
YOJOCK USB C TESTER. Fast delivery. Securely packaged. Easily readable, uncomplicated display. I've used this for only a few days. It's shown some interesting results in the changing voltage and current levels from different chargers to sundry connected devices, so, for its performance so far, I'll give it five stars.
R**S
Looks good
Looks good, does its job.
P**R
Good value
Does what itโs intended to.
C**S
Not confident with accuracy
Appears to work fine, but it is showing that my ipad took around 4000mah to charge, whereas the ipad reports that it received almost double the amount, same with my galaxy fold 3. Not worth the hassle of returning
Trustpilot
2 months ago
1 month ago