The Selec MV 2307 Digital Panel Meters - Digital Voltmeter wide range which can Indicate Voltage in operation of equipment, machinery, systems or processes in a wide range of industrial applications. It consists LCD display with Digital readout with analog style bargraph indication. Comprises of Input type: 3ø-4 wire with 0.001 resolution. Supply Voltage: 240V Features Liquid Crystal Display Single row, 3 digits Digital readout with analog style bargraph indication True RMS measurement For 3 phase, 4 wire electrical network Page selection using selection switch