Features:Adopt intelligent USB IC texting technology， quickly show the charging statusIt can test current and voltage of phone， mobile power bank etc.With USB interface， convenient to test devicesWith LCD screen， easy to see the current and voltage of the devicesPress the small circle button and the data will be zero， then you can test next dataParameters:1. Input Voltage: 3 - 7V2. Input Current: 50mA - 3500mA3. Capacity: 0 - 19999mAh4. LCD show voltage and current simultaneously5. Save data each time power off6. High precise current calibration function7. High and low voltage alarmModel: KCX - 45 Design: Professional Feature: Portable Function: Text Current and Voltage Interface: USB2.0