Great Device to Know Current and Voltage!
Want to know how fast your smartphone and tablet PC are charging through the Micro USB interface? This lovely KCX - 017 USB Current and Voltage Meter is all you need! It can show you the USB charging current and voltage instantly. Through it you can quickly find out device's current and voltage stage， like USB cable， USB wall charger， car charger or solar panel charger， which gives you the fastest charging performance! Flexible， easy to use. KCX - 017 USB Current and Voltage Meter reads the charging status to you in real-time style!






Features:
It can test current and voltage of phone， mobile power bank etc.
With a USB port and micro USB interface， convenient to test devices
With LCD screen， easy to see the current and voltage of the devices
Press the small circle button and the data will be zero， then you can test next data



Parameters:
1. Input Voltage: 3 - 7V
2. Input Current: 50mA - 3500mA
3. Capacity: 0 - 19999mAh
4. LCD show voltage and current simultaneously
5. Save data each time power off
6. High precise current calibration function
7. High and low voltage alarm