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Another feature that I really like about this meter is that there's only one button. It's simple to use, especially compared to some meters that feel like they are needlessly complicated or just badly designed. Instructions for these meters are never the best (if you get any in your language to begin with), so having a meter that's easy to use makes all the difference.
I also like the colorful LCD display that shows me all the information I need to see without having to page through endless screens. However, the text is on the small side, so bear that in mind if this is something that might be a difficulty for you.
I've tested the accuracy of the meter, and the error range seems to be well below 5%, which -- for me -- is perfectly acceptable.
And all this for a price of $16. Yes, $16. This makes the MakerHawk Type-C USB-C meter tester a total steal.
So, what do I use USB testers for?
Loads of stuff. Here are just a few things I use it for:
Is a device taking a charge? This can tell you if a device is totally dead (where it won't be taking a charge), or maybe the screen is dead (I find this a particularly useful test for things like Nintendo Switch consoles, smartphones, or in-car GPS units).
Is a charger working and delivering the power it claims? Plug the meter in, connect the charge cable to the device, and find out.
Is charging intermittent? Plug the meter in and watch. Maybe wiggle the port or the cable to see if the charging drops out.
Is the rechargeable battery worn out? Run the device until it's at zero percent, plug the meter in and charge it, and the meter will record how much mAh has been delivered. You can check this against the published specs for the device.
Is a power bank giving you the capacity it claims? Again, run it flat and plug the meter in and charge it, and let the meter record how much mAh has been delivered, and check this against the published specs for the device.
It's a really versatile tool, and one that can be used to test and diagnose all sorts of issues.