MakerHawk USB Multimeter Tester USB Type-C USB-C Voltage Tester Bluetooth Connection TFT Color Display USB Current Power Capacity Charger Amp Temperature PD Meter Tester Voltmeter Ammeter Indicator

If you want the Android app it is not available on the Google Play Store. You have to side load it from someone's Google Drive. I don't trust that approach. It goes against normal Android security guidelines.Also, if you want to measure current (amperage) you MUST connect the charging device to an INPUT connector. This may require using an adapter cable depending on what you are connecting.It does seem to do what it purports but I don't have anything to compare it with.

I also didn't realize the android app requires side-loading, something I won't be doing. I don't understand why the developer can't publish it to Google's app store.Unfortunately I picked the bluetooth version because I thought it might be hard to see the screen in some cases. That turned out to be true. For many things I can just rotate the power source but not all. So I'll probably end up getting usb extension cords for those tight spaces in the future.The rest of the device works great, the screen was easy to see at various angles and the colors helped watch things at a glance. Some items shown in really small font which I'd have to squint to read but they weren't data points I cared much for and you can cycle the display through many versions which may show less but in larger fonts.Including a few 3" extension cords and getting the android app in the Google Play store would easily make this a 5 star product.

I think that the meter it self is pretty solid and I am using it to measure current usage for an embedded device. I could not get the bluetooth to work though. I can connect to the "JDY-30" bluetooth device and open the APK installed up however no data ever get's sent to the application. Both lights on the bluetooth device are lit at all times.Update 1: Okay I got bluetooth "working"... the "TX" line was soldered to GND as well as GND (check my photo) [poor qa]. I removed the solder joint from GND to TX and I could get data on the Android app. Now I am getting the same issue as "BySteve King", the Android app after a few minutes of working properly starts reporting huge spikes in the voltage and current that do not mirror what is shown on the actual device, this makes it useless for actually logging data. :-(

This was exactly what I was looking for but it didn't last long. I have a different USB A-only meter and was looking for one to measure power on USB C so I got this. I've only used it a few times and the USB C input connector is already broken.The way it's constructed the plastic case doesn't hold the USB C input connector securely. It flops around because there's nothing holding the circuit board until halfway into the case, and it's a skinny circuit board so it flexes inside the plastic shell. The mounting of the connector itself may not be the biggest problem by itself, but the second problem is that the soldering on the USB C connector is poor. After maybe 12 times plugging it in and unplugging it, every single pin on the USB C connector has come detached from the circuit board so the USB C connection is useless. You can see the pins sliding through the clear plastic case if you shine a light through it.It looks fixable but I don't have a fine enough soldering iron with how close the USB C pins are.

The device was very accurate while measuring current and voltage, however, its USB A pin did not establish good contact with my charging devices. The Bluetooth feature is awesome, you need to download the .apk file and install it in android with developer mode on (allows installation from sources other than Google play). However, the bluetooth unit is very thin and can easily break, it should come in a case. I also had issues connecting bluetooth with my phone with pin 1234, after few tries it worked. Bluetooth handshake should be easier. Not compatible with laptops like Yoga 910 series and its charger....

This thing is perfect. I use usb c tester all the time to make sure any new chargers I buy are delivering the wattage that they claim they can. I use it to charge my two Nexus tablets, and it enables me to keep track of the health of the batteries inside them by showing the amount of current each one pulls. This usb meter was recommended to me by a friend, and so I'm recommending it here. The power tester includes rather robust instructions with less grammatical errors that you'd usually find with such inexpensive import devices. The Bluetooth of this usb meter tester works very well and stable, I get nice graphs in the PC application.In conclusion I think this product is great. I've using it for a long time. No problems. You can also see how much mAH you have charged into your battery. Anyway.. just great. Buy it, and analyze how every charger, phones and cables work.

this would work great except for one design flaw (IMHO).It works well WRT monitoring power, and the USB 2/3 ports are fine. It even come with an adapter to change the female (out) to micro USB male.Where I have a problem is with the USB C connectors.This has male & female USB C connector, so you can put it between the power source & the sink w/o an additional cable.However it is unidirectional, and the male connector is the input.What this means is if your power supply has a hardwired cord (like 2 of my 3 PD power supplies). I've tried to find a USB C female to female adapter, but so far, no luck, so for me, this is kind of useless.It would have made more sense to me to provide 2 female ports & a male to make adapter, or, have the male connector the output.