<b>The high-precision, versatile solution for checking voltage and current at USB interfaces and on USB devices.</b>
USB Power Monitor, Input/Output: 3-7V/50-3500mA LCD indicator,white
The USB Power Monitor is simply connected between a USB port (e.g., on a computer, power pack, or power bank) and the device being tested. Volts, amperes, and the total current in milliampere-hours are displayed simultaneously on the illuminated screen. With the versatile USB Power Monitor, you can, for example, measure the actual capacity of your power banks, verify that USB power supplies are working, identify error sources in the power consumption of external USB devices (e.g., external hard drives), test USB cables for suitability as charging cables, or check for the desired functions in your do-it-yourself projects. The benefits of the USB Power Monitor include the simultaneous display of all measured values in real time, the easy-to-read backlit screen, and the flexible connecting cable, which makes it possible to read the screen even in hard to reach locations. Thanks to the loop-through data lines, any connected USB device can be operated normally so that measurements may be taken under standard operating conditions. Power is supplied through the USB port. No additional batteries or power sources are needed.