Specifications:- Input Voltage – 4.5V to 30V DC Input Current – <= 20mA Display Color – Red (Voltage) , Blue (Current) Measuring Voltage Range – 0V to 100V DC Measuring Currrent Range – 0A to 10A Measurement Accuracy – 1% Minimum Voltage Resolution – 0.1V Minimum Current Resolution – 0.01A Size – 48x29x21mm Note:- Maximum Input Voltage should not exceed 30V otherwise there is a danger of burning Wiring:- Black line (thin): vacant or buck circuit (module) Negative Red line (thin): power supply Positive Black line (thick): COM, common measuring Red line (thick): PW , measuring terminal voltage input positive Yellow line (thick): IN , current input Positive