Description:Test Voltage: DC 3.2 ~ 10VTest Current: 0 ~ 3A (10A Maximum， If more than 3A， can not work continuously)Operating Current: < 20mALED Size: 0.28 inch LEDDisplay Ways: Blue display current， red display voltageSize:69*26*19mmUSB Extension cable: about 120mmMeasuring Rate:not less than 500mS / timesAccuracy: 1% ( about 2 digits ) Extreme Working Conditions:Low Supply Voltage: +3.2 VMaximum Supply Voltage: +10 VWorking Temperature: -10 centidegree ~ +65 centidegreeOperating Humidity: 10% ~ 80% ( non-condensing )Working Pressure: 80 ~ 106kPaSun Exposure: No direct exposureFeatures:At the same time， with the screen display USB charging voltage， electric currentOne-input ， dual-outputOutput 1 Function:Data Communication Function: Mobile phones or other mobile device and a computer for data transferCharging Voltage Output Function: Suitable for most of mobile phones ， mobile power ， tablet PCs and other USB devices， if with Original Charger or other with high-current Identify resistance charger， can also supports for IPad， for IPhone and for Samsung S4 " High Current " charge. Output 2 Function:Charging Voltage Output Function: Apple Special Type， only suitable for IPad， for IPhone and for Samsung S4 " High Current " charge.