They have three different versions of the cable that I spot. a USB A to Micro USB, a USB A to USB C which is what they sent me, and a USB C to USB C.
While knowing the volts and amps your device is currently pulling may not be something everyone is interested in, it’s been interesting watching a Qualcomm Quick Charge 3 device as it slowly ramps down the volts and amps in its quick charge cycle.
The USB A to USB C they sent me is about on par with any decent USB A series cord, but lacks the rigidity of most USB C cables I’ve seen. I’m not sure why all the new ones are so rigid, so perhaps there’s a downside that I’m not aware of.
The monitor works by switching at intervals between volts and amps, and I’m pretty sure the display is fixed for that as I’ve never noticed an amp or volt change until it displayed next.
Neat little cables, can let you know when your device is being a punk and not charging fast.
They can monitor between 3.6 and 20 volts, and 0.1-3.0 amps.
You can see all the CHOETECH voltage monitor cables here. They’re currently running about $16.99 but I’d expect that to drop.