ITEM NAME:New DC3-30V 2 Wires 0.56 Inches Red LED Voltmeter Panel Voltage Display Product Description Description: This voltmeter is 100% brand new and high quality. It adopts 0.56" LED digital display tube, with 2 wires and compact plastic shell, specially designed for voltage measurement. Features: LED display tube: 3 digit 0.56" Power supply range: 4-30V Size: 4.80*2.80*1.80cm Measurement accuracy:0.1% Measuring range: 3V-30V Display color: red Included: 1X voltmeter panel.LED display tube: 3 digit 0.56". Display color: red. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. Mon. to Sat.