Eversame 2 in 1 Type C USB Tester Color Screen LCD Digital Multimeter, USB C Voltage Current Voltmeter Amp Volt Ammeter Detector USB Cable Charger Indicator DC3.6-30V/0-5.1A

This tester is quite useful and is reasonably priced. It takes a little time to master its operation so I offer the following description to help other users:I purchased the Eversame 2 in 1 USB Digital Tester which seems identical to the KJ-KjayI 2 in 1 Multifunctional Digital Multimeter Tester.When powering the tester with the type-C input, either a type-C device must be connected to the output or the micro USB adapter must be connected for the tester to function. The tester will also function when it is powered using the USB-A input regardless of the USB adapter. Even though the tester can be powered using the output connectors (according to some Youtube videos) it does not function correctly so don't do it.When first powered, the tester displays the first of several screens. All of these screens switch to the "Standby" screen (which can be changed in "settings") after one minute regardless of any load connected to the tester. Pressing the button once in "Standby" returns to the screen that was active before timing out. Clicking again advances to the next data screen. Double clicking resets the amp-hour field. Triple clicking resets the watt-hour field. Clicking four times resets the timer. Long pressing resets all three fields. All data is logged in the current test group. Data logged in a particular test group are separate from data in other test groups. There are 10 test groups that can be selected by clicking five times. The current test group will be displayed after cycling tester power.Individual data Screens:1) This display shows voltage and current on the top line using a medium font. The second line shows power and ohms (the equivalent load resistance). The third line shows watt hours, temperature, and amp hours. The last line is a timer (that only counts while powering a load for calculating time dependent values) and test group number. Click once to go to screen #2.2) On the first line, the voltage of the negative power line is shown (isn't this always zero?) followed by USB protocol in effect and the equivalent resistance of the load. The next two lines show the data line voltages and the bottom line is the voltage of the positive power line. Click once to go to screen #3.3) This display is mostly in Chinese which is the same data as screen #4.4) This screen is self explanatory.5) Large fonts without time.6) This screen graphs voltage and current with the color and range of voltage on the left with current on the right. Time resolution ranges from 0.5 to 5 seconds and is selected by long pressing. The variance of voltage and current is shown center on the bottom line.7) This screen is also a graph similar to #6 except the data lines are shown. The vertical scale is from 0 to 5 volts. I'm not sure what the two lower center voltages show but they always seem to be 1.0V. Time resolution operates the same as screen #6.8) System Settings:Long press to enter this function. Step thru the parameters by clicking once. When the desired parameter is highlighted, perform a long press until the highlighted parameter starts flashing. Clicking once decrements the parameter. Long pressing while highlighted quickly lowers the value. Double clicking increments the value. After incrementing the value, long pressing will quickly raise the value. Single click to go back lowering the value. After a few seconds of not clicking, the displayed value is saved and the tester shows "OK".There are eight system parameters:1. Over Voltage Protection (OVP) (supposedly it beeps when over this value)2. Lower Voltage Protection (LVP)3. Over Current Protection (OCP) (I think it shuts down and must be reset)4. Screen Rotation with long press (flips display 180°)5. Default Set with long press (return to factory default values)6. Clear Data with long press (clears all data in all test groups)7. Standby Style screen after timeout (either original or volts, amps, watts are displayed)8. Capacity Ratio (I guess it calculates power bank capacity as percentage)9. Exit now with long press instead of waiting for timeout9) This display starts a countdown timer to turn the display off. Click once to advance to the first display screen before the countdown finishes and turns off the display. To re-enable the display, long press which brings up reference settings. Voltage and current are displayed and I guess can be modified to calibrate these values and I'm not sure how this works but my tester seems fairly accurate as shipped.Happy testing!

The device is very much plug and play. I had to use a female-to-female USB-C adapter, but other than that it worked exactly as expected. I tested with my cell phone and tablet using two different chargers. The results were very informative. The tablet also reported on the charging behavior. So far, it is providing me the information I wanted.The device is quite small and seems well made. Note that as stated in the information, the USB-C input only works in one direction. I had to turn over the feed to make the device work. After that it was great. The display is small, but very legible. Good product!

If you want to measure charging power to your battery operated devices, this will work perfectly for you. If, however, you want to see what your accessories (external drives, USB-C expanders) are drawing in various configurations, there are some things you need to be aware of. I wasn't able to find the details about this in any of the documentation, it may be in other reviews but I could not find is so I'm passing it along here.There are really 2 instruments here, one that measures the power flow from the USB-A input to the USB-A output, and one that measures the power flow from the USB-C input to the USB-C output. I'm guessing the sensing element is in the ground connection and is common, but other than that there is no connection between the two. If you power it through the A connector there will be no power on the C connector and vice versa. The second case I can understand as C is specified for voltages that would break things expecting 5V on the A connector, so this in not that big a deal.HOWEVER, it appears that the USB-C input and output are not completely wired - only the backward compatible USB 2.0 differential pair is connected, and not the USB 3.0+ differential pairs. Since PD works it looks like those signals are connected, but the upshot is that if you want to measure the draw of an accessory and that accessory only functions when it is connected to a USB 3.0+ controller, you can't do it. In the best case the accessory will fall back to USB 2.0 operation (if it can), in the worst case if USB 2.0 does not provide enough bandwidth it won't operate at all.I've got 4 external drives and I wanted to see which of them used the least power in actual usage conditions to maximize the working time on my laptop when away from the charger, and due to this limitation I can only test them at USB 2.0 speeds (which they all fall back to) - not the way they would actually be used.I've got a couple of USB power meters I've bought over the years and I'm going to keep this one, but be aware of this issue when you buy. It does operate as advertised for charging power measurements.

Well priced, and lots of functionality. Worked great for my needs, to figure out how much current a device was pulling.

I purchased this tester to check out the output of my USB ports on my computers and wall warts (chargers). This is a great tester that gives Voltage, Amperage and Wattage. You can't go wrong with this tester and the price is right.The picture is the output to my Motorola Edge phone which accepts a 30 W charge.

Works excellent without fail! Works well with higher powered phones charging at full speed! This is especially worthwhile as others that I've tried seem to and in fact do limit the charging speed to much lower than the theoretical maximum.

USB C test leg only works if you have something connected to both ends... like your laptop power cord. Thought the unit was broken but apparently you have to have power running THROUGH the USB C test leg to see anything on the display. That is not intuitive, and I would recommend a tester with better design and more features if you are going to be using this for any daily application. The instructions are not very clear either, so look up a video on YouTube if you want to understand how this functions.