VOLTMETER; No. of Digits / Alpha:3-1/2;; VOLTMETER; No. of Digits / Alpha:3-1/2; Meter Function:DC Volts; Meter Range:-20V to +20V; Digit Height:9.4mm; Panel Cutout Height:21.29mm; Panel Cutout Width:33.93mm; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V