Description100% brand new and high qualityFeatures:Have one switching button to switch between current and voltage output.Current and voltage output simultaneously, output wiring terminals are independently.Output terminals have short-circut protection, power supply terminals have polarity reverse connection protection.Small size comfortable external shape: alloy adjustable knob, elegant external case, easy to carry.Technical Indicators1 External Power Supply:DC15-30V 1W(Non charge)/5W(Charging);2 3.7V Lithium Battery Capacity 1000mAh,Maximum Charge Current 0.8A (SelectionConfiguration);3 External Connection microUSB- 5V :0.2A(Non charge)/1A(Charging);4 Adjustable Voltage Output 0-10V, Precision 0.01V,Can Be Calibrated;Maximum Output Current 100mA, Short Circuit Protection;5 Adjustable Current Output 0-22mA,Precision 0.01mA,Can Be Calibrated;Sampling Resistor 10-500Ω,Can Be Short;6 Digital Display Digit 4 Digit, Two Decimal;7 Encoder Knob Rotate One Circle Has 20 pulses;Specification:Material: Plastic, AlloyDimensions: 100x60x25mm(3.94x2.36x0.98in)(approx)Color: As pictures shown.Quantity: 1 pcNote:Transition: 1cm=10mm=0.39inchNo retail package.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!We can provide a detailed PDF version of the English manual. Please contact us for more information.Package includes:1 x Signal Generator(other accessories demo in the picture is not included.)