Specifications‎:‎ Working current‎:‎＜60mA Display mode‎:‎0.28" LED double colors‎(‎Red‎,‎Blue‎)‎ Dimension‎:‎48x29x21mm Installation hole size‎:‎45.5x26.5mm Measured rate‎:‎≥500mS per time Measuring accuracy‎:‎ 1% Minimum working voltage‎:‎ +4.5V Max working voltage‎:‎ +30V Operating temperature‎:‎ ‎-10℃ to +65℃ Operating humidity‎:‎10% to 80% Operating pressure‎:‎80kPa to 106kPa Testing voltage‎:‎0‎-100V Supply voltage range‎:‎DC 4.5‎-30V Wire lead length‎:‎20cm Current range‎:‎1A‎,‎2A‎,‎5A‎,‎10A‎,‎50A‎,‎100A Onboard Wire Instructions‎:‎ Thin Red Wire ‎(‎VCC‎)‎‎:‎ positive pole of power supply input ‎(‎3.5‎-30V‎)‎ ‎(‎Note‎:‎ if the measuring signal is less than 30V and the power is adequate‎,‎ can be the power supply of module‎)‎ Thin Black Wire ‎(‎GND‎)‎‎:‎ negative pole of power supply input ‎(‎3.5‎-30V‎,‎ common ground with measuring signal‎)‎ Green Wire ‎(‎VIN‎)‎‎:‎ positive pole of measuring signal input ‎(‎0‎-100V‎)‎ Thick Red Wire ‎(‎I+‎)‎‎:‎ positive pole of current input ‎(‎series connect on the power supply cathode‎)‎ Thick Black Wire ‎(‎I‎-‎)‎‎:‎ negative pole of current input ‎(‎series connect on the power supply cathode‎)‎ Package Included‎:‎ 1x Dual LED Panel Ampere+ Voltage Meter