Klein Tools ET920 USB Power Meter: USB-A and USB-C Digital Meter for Precise Voltage, Current, Capacity, Energy, and Resistance Measurement Review

I really wish they would choose the power measurement instead of the resistance calculation method. or even both. It states voltage and current, but with Qualcomm and other fast-charging technologies, it's useful to use watts without having to calculate them. If I wanted I could get a much cheaper meter that would only read V and A. It's also very annoying to have to scroll through 10 memory banks to switch between expanded and standard display when pressing the mode button. The gauge looks…

Gives an impossible reading; 150mAh for 3AAA. under several conditions. but so many inconsistencies point to the meter verifier being responsible for those readings. For example 0 ohms, 0mA (less than 50 reads like zero, which isn't entirely wrong, but at 5.3V the OEM charger works at a fast charge of 2000mA) and under various circumstances battery cables and charge timestamps hang. I tested the load and all but one of the power supplies have enough current to power both devices. There will be…

I mainly use this to place a solar powered USB portable charger. It works great and updates readings quickly. This appears to be accurate, but I don't have another gauge to test its accuracy. Also, it was very helpful to determine the quality of the USB cables. Some have much lower resistance than others, so unsurprisingly, low-resistance cables perform much better. I took this counter on a hike and it was foggy/rainy, it dangled in my backpack with no extra protection and in my toolbox at…

This is a pretty good tool, but it suffers from some major disadvantages due to the lack of names. So the tool is simple: plug it into your charger and then output it via USB-C or USB-A. . Then the device begins to record the voltage and current of the capacity. Pros: Easy to use and easy to use. The ability to store data on the device. Provides USB-C and USB-A input/output. Cons: If your charger shuts down when low power output is detected, data will be lost. This is probably the worst as most

ET910 - It supports a full 20V at 3A. The problem however is that it always negotiates to the lowest. So unless you have a hardwired 60W power supply, you won't get one. If you use this to test random PSUs, you won't be able to test full power if they match. In addition, the device heats up quickly at full power of 60 W. So if you have a lot of cables to test, you'll have to wait a while for the device to cool down constantly, as it often turns itself off when it's too hot. had a fixed power…

Unlike its cheaper competitors (no USB crossover cables), this device insists on "passing current passing through it." flows. Granted, it was clearly labeled that the cables are for input and the USB A/C ports on the bottom are for output. When delivered, this device can only measure the output power of the power bank. No current is measured for everyday chargers that plug directly into your tablet/phone. Only the voltage is read and displayed. I'm ordering another USB-C female to female…

Really expected more from a big brand like Klein. It's a cheap $5 USB tester in a different package, but actually with less functionality than many cheap generics. Watts are not displayed. Just volts and amps, so you'll have to calculate that yourself. Mine just came out of the box with a big smudge in the middle of the screen where it's blurry and hard to read. The minimum current is 50mA, which is ridiculously insensitive for a USB tester and makes it unusable for many portable devices. The…