ITEM NAME:QC3.0/2.0 USB Charger Doctor Capacity Current Voltage Detector Meter tester #gib Product Description Description: Specifications: QC3.0/2.0 USB Charger Doctor Capacity Current Voltage Detector Meter Battery Tester USB 5V 9V 12V 20V QC 2.0 3.0 OLED Current Voltage Charger Capacity Tester USB Charger Doctor Power Meter Text Voltmeter Display data: Voltage Current Capacity Time 1: Input 2: RTZ, Reset button , press it three seconds will Reset 3: Out 4: Voltage:3.5V-9V ( 1% accuracy ) 5: Current:0-3 .3 A ( accuracy of 0.4% ) 6: Battery Capacity(0-99999mah) 7: Working time (0-99Hour) 8: The working time and Capacity have Memory function when power off Included: 1 x USB Charger Detector with Case.2: RTZ, Reset button, press it three seconds will Reset. 6: Battery Capacity(0-99999mah). 5: Current:0-3. 3 A ( accuracy of 0.4% ). If item is defective after 3 months, you can still send it back to us.