DC AMMETER; No. of Digits / Alpha:3-1/2; Meter Function:DC Current; Meter Range:0A to 5A / 0A to 50A / 0A to 500A; Digit Height:9.4mm; Panel Cutout Height:21.29mm; Panel Cutout Width:33.93mm; Supply Voltage Min:5VDC; Accuracy: 0.1%