Features: Operating voltage: DC 4.5 - 30V Measure voltage: DC 0 - 100V; Minimum resolution(V): 0.1V Measure current : 2A (direct measurement,built-in shunt) Minimum resolution(A): 0.01A Operating Current: Display: three 0.28" LED digital tube Display color: Red Dimensions: 48 x 29 x 21 mm Mounting cutout: 45.5 x 26.5 mm Refresh rate: about 500mS / times Measure accuracy: 1% (plus or minus 1 digit) Operating temperature: -10 to 65 degree Operating Humidity: 10 to 80% (non-condensing) Working pressure: 80 to 106 kPa Applications: Suitable for automotive/electric cars/motorcycles battery monitoring or other products voltage current measurement Connection: Black line (thin): vacant or buck circuit (module) negative Red line (thin): power supply+ black line (thick): COM, common measuring red line (thick): PW+, measuring terminal voltage input positive yellow line (thick): IN+, current input+ (Please refer to the wiring diagrams for more details) Note: the voltage between the thin red and thin black lines must be within DC 4.5-30V the ammeter can only be connected to the negative of the device under test 10A below ammeter (include 10A), direct measurement , does not require external shunt when the black thin line vacant, it is better to use insulating tape around the exposed part of the wire, to prevent short circuits if just be used as voltmeter, it is recommended that the yellow line and the black line were connected together, to prevent the ammeter digital flashing Package include: 1 x Digital Current Voltage Meter
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