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 timeout 9) 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!

This small device appears to function effectively. I tested its voltage, and it’s 3% higher than the expected value. The amperage is within the correct range upto the display resolution of 10mA. It is easy to this device, though it takes a little playing around to see how all the screens and settings work. However, there are two areas where I’d like improvements. First, when using the USB-C input, the USB-A output is disabled. The following connections work: USB-C to USB-C, USB-A to USB-C, microUSB to USB-A, and microUSB to USB-C. Second, it would be beneficial if the display could show 1mA instead of 10mA resolution. This device has been helpful in determining the power consumption of various USB devices. Additionally, it includes a timer that tracks the duration of current measurement.

Purchased this tester to help me understand the actual power usage of various devices and builds I've been doing in the Meshtastic world. It provides good insight through it's various screens and functionality, gives accurate enough readings and seems to be of decent build quality. I really wish it had a better display (larger maybe?) so it was easier to read. The way it is now it's a challenge to read at a distance or if your eyesight is declining a bit. Otherwise...good product, gives good insight. I keep it in my tool box and keep finding ways to use it.

Precise readings, clear and colorful display, works with both USB-A and USB-C power sources, and has extra features such as drawing a graph of values over time and counting cumulative charge over time. A bargain at under $20. 10/10!

Already have one and love it, this one is a gift. Works great

Great device with many data readouts. Amazing for such a low price!

You are getting basic functionality at a very low price, and if your expectations are modest it can serve its purpose. It reads voltages and continuity reasonably close to expected values, so for occasional home use it’s acceptable. This does not feel like a long-term tool you would rely on daily or in demanding environments. It feels budget-grade, and I wouldn’t depend on it for professional troubleshooting. Build material quality reflects its price point - the casing is made from very thin plastic that feels flimsy in hand and could crack if dropped or stressed. Buttons and the dial work, but they don’t inspire confidence for heavy use. The display is clear in shaded indoor settings, but in bright light—especially outdoors around solar arrays—it becomes difficult to read, which makes precise measurement challenging. To use this multimeter effectively, turn the dial to the measurement you need (voltage, resistance, continuity, etc.) before touching the probes to the circuit under test. For basic DC voltage checks on batteries, small electronics, and light solar setups, keep the display shaded or use your body to block glare so you can see the numbers clearly. The tool is best for occasional checks and simple DIY electrical tasks where advanced features and ruggedness aren’t required. It’s not well-suited for heavy field use, professional work, or environments where clear visibility and robust housing are essential.

Tres utile, je ne pourrais plus me passer de cette item

I wanted to check the charging current supplied to my phone or tablet by various chargers and cable combinations. Most of the time I want the slowest charge rate to minimise wear on the battery of my phone. One plugged in, this item automatically lets me know these details, and additional information if I want. It also lets me see which devices automatically stop drawing current when they reach full charge. The printed manual that comes with this item is ridiculously tiny. The pictures on Amazon that show the item's applications plus how to change settings are much more legible. I suggest you save copies of those images from the Amazon product page for this item.

1. Working as expected. 2. Value for money. 3. Lots of review here are about measuring wrong current , where they show a current in mobile app and current measured by this USB tester are different, but the app shows the addition of input and output current of battery while this USB tester shows only input current and voltage of the battery , so the difference in the current shown by the app and this tester is acceptable. 4. Some people says that it is not measuring wrong capacity (mAH) but if you see how it calculates capacity then you can manually calculate the capacity by dividing the Wh reading by 3.7 volt. For example , in the image i have attached with review, it is showing 38Wh. And it is showing 2804mAh. But my battery is 10,000mAh. The reason it is showing 2804 mAh is because , while charging ,it was Charging with 14V fast charging voltage, so it divided 38Wh by 14 which comes around 2804mAh. So to get the accurate mAh capacity just divide the Wh reading by nominal voltage of single battery that is 3.7v , if we divide 38Wh by 3.7V , it comes around 10,000mAh, so this tester is accurate. So accuracy is good. 5. Quality is also good.

very useful when you need to troubleshoot some devices.. Works well

The item works well, shows everything. But it didn't live up to my expectations. Maybe it's my problem, not the item's. I'm not smart enough to accurately understand the numbers it shows 😀