SMAKN LED Tester Voltmeter Ammeter Digital Amp Volt Ampere Panel Meter DC Current 100V/50A Red/Blue 2-color
Operating voltage:DC 4.5 ~ 30VMeasure voltage: DC 0 ~ 100VMinimum resolution(V): 0.1VMeasure current :50A (require external shunt)Minimum resolution(A): 0.1AOperating current: <20mA>Display: three 0.28" LED digital tube<BR>Display color: Red and Blue (two-color display)Dimensions: 48 x 29 x 21mmMounting cutout: 45.5 x 26.5mmRefresh rate: about 500mS / timesMeasure accuracy: 1% ( 1 digit)Operating temperature: -10 to 65 cOperating Humidity: 10 to 80% (non-condensing)Working pressure: 80 to 106 kPaApplications:Suitable for automotive/electric cars/motorcycles battery monitor or other products voltage current measureWiring:Black line (thin): vacant or buck circuit (module) negativeRed line (thin): power supply+Black line (thick): COM, common measureRed line (thick): PW+, measure terminal voltage input positiveYellow line (thick): IN+, current input+(Please refer to the wiring diagrams for more details)Notice:The voltage between the thin red and thin black lines must be within DC 4.5-30VThe ammeter can only be connected to the negative of the device under testExceeds 5A, long-term full load working continuously, it is recommended that the measurement side of the leads are directly soldered to the socketWhen the black thin line vacant, it is better to use insulating tape around the exposed part of the wire, to prevent short circuitsIf just be used as a voltmeter, it is recommended that the yellow line and the black line were connected together, to prevent the ammeter digital flashingPackage include:1x Digital Volt Amp Meter