MULTI PANEL METER 4-DIGIT 100VAC TO 240VAC; No. of Digits / Alpha:4; Meter Function:AC Voltage / Frequency; Meter Range:0V to 500V / 0.1Hz to 9.999KHz; Digit Height:14.2mm; Panel Cutout Height:31.5mm; Panel Cutout Width:68mm ;RoHS Compliant: Yes