Review on 🔌 DROK 180043 USB Multimeter with OLED Display, DC 13V Voltage Ampere Power Capacity, 4-in-1 Multi Tester including USB 3.0 Hub by Jeff Aulia

Works great. I tested the voltage accuracy with my desktop multimeter and it was good to measure both low and high current devices (iPad or Raspberry Pi). I have only tested USB 5V power supplies, not higher voltage power supplies, and I have not tested the accuracy of the current/power measurement. I'm always concerned that devices like this won't give accurate results and since I bought this as a quick test for other USB powered devices I wanted to make sure the DROK was accurate. I'm glad it was a good purchase. I also like the feature that shows the total mAh to charge the device. It has many uses.