USB Voltmeter with Female USB Out

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 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. 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

Specification:

Specification

Model	KCX - 017
Design	Professional
Feature	Portable
Function	Text Current and Voltage
Interface	USB2.0
Product Weight	0.024 kg
Package Weight	0.07 kg
Product Size (L x W x H)	6 x 2.8 x 1.5 cm / 2.36 x 1.10 x 0.59 inches
Package Size (L x W x H)	7 x 4 x 3 cm / 2.75 x 1.57 x 1.18 inches
Package Contents	1 x Current Voltage Meter

The first group of pictures charger test

iPad original charger connected to 2A load resistor, the output current and voltage is 5.01V 1.89A

iPad original charger via USB HUB, connected to the 2A load resistor and mobile phones, the measured value of the maximum current and volatage is 5.01V 2.28A , very good charger.

Salcomp (a Nokia company) charger connected to 2A load resistor, the output and volatage is 5.01V 1.89A

Salcomp ( a Nokia company) charger via USB HUB, connected to the 2A load resistor and mobile phones, the measured value of the maximum current and voltage is 5.06V 2.20A, very good charger.

Mobile power connector USB HUB for mobile phone charging, the measured voltage and current values 5.00V 0.44A

Mobile power via USB HUB, connected to the 2A load resistor and mobile phones, the measured value of the maximum current and voltage 4.86V 1.96A, still good mobile power.

The second group of pictures USB data cable tests

LG 1m original data cable, 1A current charger, USB tester, test result 4.8V 0.92A

Samsung 1.5m original data cable, 1A current charger, USB tester, test result 4.80V 0.92A

Orange data cable, 1A current charger, USB tester, test result 4.22V 0.81A. This cable quality is no good.

Mobile power discharge capacity test

Beginning discharge is 0001mAh

After 10 minutes the discharge capacity is 0164mAh

We conclued that the charging current is 0.98A, after 10 minutes the discharge capacity is 164mAh.

Note: This data is mobile power discharge capacity, not battery capacity. According to our experience, the mobile power discharge capacity is about 1.9 times of the battery capacity.