ولتمتر و آمپرمتر روپنلی دو رنگ قرمز و آبی Features Display TypeDigital Only Dimensions 48mm  29mm  21mm Supply voltage DC3530V Weight 20 g DisplayDual 3bit  028 inch LED digital Display color red  blue Refresh rate about 500ms  times Accuracy  1  2 words Current consumptionAbout 15mA Voltmeter range  DC 0  999V resolution 01V Ammeter Range DC 0  999A