Features:Dual-color digital display(red for Voltage and Blue for current), bright LED, easy to readVoltage measuring range: dc0-100v; current measuring range: 0-100a(decimal point move automatically)Flexible power supply, can use both isolated and non isolated power supply for powering up the meterWith reverse connection protection to avoid burning for reverse connectionGround wire of testing end and power supply terminal is the same wire; quick refresh Description:Display voltage and current simultaneously in different colors, red for voltage, blue for current.(the current is measured in the negative rail).Require external power supply; With reversed connection protection.Ground wire of testing end and power supply temninal is the same wire; quick refresh of about 500 ms/timeSpecification:Material: plasticColor: red, bluesize: 48×29×21 mmWorking voltage: 4.5-30V DCNote: The maximum input voltage can not exceed 30V, otherwise there is the dangers of burningWorking current:≤20mADisplay: 0.28" Two color blue and redMeasuring range: DC 0-100V 0-10AMinimum resolution (V): 0.1VRefresh rate: ≥100mS / timesMeasure accuracy: 1% (± 1 digit)Minimum resolution (A): 0.01AOperating temperature: -15 to 70° cWorking pressure: 80 to 106 kPaPackage includes:1 x 100V 10A DC Digital Voltmeter Ammeter    

Note: The maximum input voltage can not exceed 30V, otherwise there is the dangers of burningWorking current:≤20mADisplay: 0.28" Two color blue and redMeasuring range: DC 0-100V 0-10AMinimum resolution (V): 0.1VRefresh rate: ≥100mS / timesMeasure accuracy: 1% (± 1 digit)Minimum resolution (A): 0.01AOperating temperature: -15 to 70° cWorking pressure: 80 to 106 kPaPackage includes:1 x 100V 10A DC Digital Voltmeter Ammeter