USB Charger Doctor Current Voltage Detector -Translucent Blue + Silver
Detection range: Voltage: 3~7.5V; Current: 0~2.5A; Error: Voltage: less than +/- 1% Current :less than 2% Resolution: voltage 10 mV; current 1 mA Full scale pressure drop: 200 mv (when measuring current) Working temperature:0-60 °C Application:Compact and easy to carry no additional power supply plug and play; It can easily measure the output voltage of the USB port and the device operating current or load voltage