TexmatePANEL DISPLAY, VOLTMETER, LED, 3.5DIGIT; No. of Digits / Alpha:3-1/2; Meter Function:DC Voltage; Meter Range: 2VDC / 20VDC / 200VDC; Digit Height:-; Panel Cutout Height:24.6mm; Panel Cutout Width:64.8mm; Supply Voltage Min:4.5VDC ;RoHS Compliant: NA