SMAKN&reg; Mini 3 Wires 0.36" LED Digital Volt Voltage Panel Meter Voltmeter 0-100v(99.9), Three-wires (White) Range: DC 0-100V(0-99.9) Display: Three 0.36 "LED digital tube Refresh rate: about 500mS / times Maximum input: &lt; 1.2 times the range Accuracy: 1 %(+/- 1 digit)