Digital voltmeter ammeter DC 0-100v 10a dual LED red blue monitor panel 100 percent brand new. Size: 48mm x 29mm x 21mm. Display color: Red and blue LED (dual display). Display: 0. 28″ LED digital. Operating voltage: DC 4. 5 ~ 30v. Measure voltage: DC 0 ~ 100v. Minimum resolution (v): 0. 1v. Operating current: 20ma.