>br / >A Must-have Device to Know Current and Voltage!
Wait to know why your USB charging is slow and take forever time? This cute device is what exactly you need - To show you the USB charging current and voltage instantly. KCX - 045 Current and Voltage Detecor is an excellent testing and troubleshooting tool to check the performance of USB power sources on your computer， cellphone， or mobile power supply. It adopts new generation integrated circuit board with precision reference source， providing accurate measuring and stable performance. Made of high-grade material， it also resists interference and heat and thus is reliable and durable. Featuring plug-and-play design， it is easy to use. Don\'t hesitate to get one! You won\'t regret it!















Features:
Adopt intelligent USB IC texting technology， quickly show the charging status
It can test current and voltage of phone， mobile power bank etc.
With 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