A USB Multimeter is a must-have tool for anyone that uses USB chargers — which is just about everyone! No more guessing whether your cell phone, mod, or other electronic device is charging and how fast, put this device inline and see the realtime performance of your USB power supply.
- Measures USB power supply output voltage and current (amps), and tracks battery capacity.
- Convenient pocket sized unit
- Fits inline with any full-size USB socket — USB wall-warts, laptop USB ports, etc.