ولتمتر و آمپرمتر روپنلی قرمز Specification  Display Type Digital Only Dimensions 48mm  29mm  21mm Supply voltage DC3530V Weight 20 g Display Dual 3bit  028 inch LED digital Display color red  red Refresh rate about 500ms  times Accuracy  1  2 words Current consumption About 15mA Voltmeter range  DC 0  999V resolution 01V Ammeter Range DC 0  999A