Main Features:
Multifunctional Testing Tool・ it can measure voltage・ current・ discharge flow・ also includes timing・ over flow and voltage protectionSmall size・easy to carry and store・ you can use it anywhere and anytimeThe screen displays current and voltage data for easy viewingWith precision current calibration functionMeasuring Method:
USB input port is plugged in 5V charger・ USB output port is connected to mobile phone・ directly read the current and voltage parametersMeasuring Micro USB line quality: USB output port is connected to mobile phone・ USB input port is plugged in the 5V charger first・ remember the voltage・ then Micro USB input port is connected to 5V charger・ remember the voltage. The smaller the voltage difference・ the better the quality of the Micro USB lineUse TP4056 and other linear charging circuit・ through this capacity table・ to fully charge the battery with completely no power・ the capacity data is the battery capacity・ and using this method・ you can also test the mobile phone charging capacityConnect this testing tool to portable power source and turn on it. Press the button until the capacity data is zero. Insert the cell phone to charge until the portable power source switches off automatically. The next time you open this testing tool・ the display capacity is the portable power source output mAhParameter:
Voltage ( input / output ) : 3V - 9V Voltage resolution: 0.01VCurrent ( input / output ) : 0A - 5ACurrent resolution: 0.01AAccuracy: + / - 1 percent


Application: Computer・Mobile phone


0.0240 Package weight: 0.047 kg
Product Size(L x W x H): 7.30 x 2.70 x 1.40 cm / 2.87 x 1.06 x 0.55 inches
Package Size(L x W x H): 12.00 x 8.00 x 1.50 cm / 4.72 x 3.15 x 0.59 inches


Package Contents: 1 x USB Detector