Precision DUAL USB TesterUT658 measures output voltage, current, energy, capacitance, circuit equivalent resistance, D+ and D- voltage of USB data cable, etc., for accuracy , reliability, stability and portability. They are great tools for applications such as manufacturing verification, engineering testing, and DIYers. battery, capacity and loop equivalent resistance on the same screen.Support Qualcomm 2.0 fast charging protocolWith USB 2.0 data transmission function, Type-A/Type-C interface and dual interface, satisfying most charging interface choices.Type-A interface and 10 sets of data storageIntelligent memory charging capacity data, memory monitoring and measurement data, up to to 10 sets of measurement data stored, the data can be one button to clear, data self-protection is not lost.Wide ApplicationUSB current monitor can improve the efficiency of the charging, protect electronic equipment, perfect measure for the tablet, mobile phone batteries, rechargeable treasure, support USB 2.0 data transmission and QC1.01 / 2.0 / 3.0 / 4.0 (Type A / C) fast charging protocol. Features 1 . Type A interface 2.The same screen shows voltage, current, power, capacity, etc. 3.10 sets of data storage 4. Loop equivalent resistance measurement (1-480) 5. CE certified 6. Support fast charging protocol (QC1.0 / 2.0 / 3.0Type-A) 7.With a maximum working current electronic load of 3A (LOAD version) Specification Input and output ports exit: USB Type A / USB Type C Voltage Range: 4~24VDC, resolution: 0.01 Current range: 0.05~3ADC, resolution0.01A / 0.05~5ADC, resolution 0.01A Capacity: 0~99999mAh, resolution: 1mAh Energy: 0~1000Wh Circuit equivalent resistance measurement: 1~480 USB data cable voltage (D+, D-): 0~3.3V Data Storage: 10 sets Maximum duration: 99h, 59min, 59sec; resolution: 1s Supports fast charging: Support USB 2.0 dala transmission and QC1.0 / 2.0 / 3.0 quick charge protocol (Type A) Support USB 2.0 dala transmission and QC1.0 / 2.0 / 3.0 quick charge protocol 4.0 (Type-C) Certification: CE Certification Packing List 1 * USB Tester Please note: Battery not included