Dc 100v 10a Voltmeter Ammeter Blue + Red Led Amp Dual Digital Volt Meter GaugeThe product is shipped based on the color or size of the main image of the product page.Features:Require 4.5-30V DC working voltage.The maximum input voltage can not exceed 30V, otherwise there is the danger of burning.Working current is 20mA.Measuring range is DC 0-100V 0-10A.Refresh rate up to 100mS / timesMeasure accuracy is 1% ( 1 digit)Operating temperature is from15 to 70 cWorking pressure is from 80 to 106 kPa.Specifications:Working voltage:4.5-30V DCNote: The maximum input voltage can not exceed 30V, otherwise there is the danger 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 kPaSize :47 x 28 x16 mm/1.85 x 1.10 x 0.63\"\"Color:blackPackage Included:1 x Voltmeter Ammeter