SMAKN® 2-Wires 4-Digits BLUE Dc 3.50-30.00v LED Panel Digital Display Voltage Meter Voltmeter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Opening size: 45.5mm * 26.5mm</li><li>Dimensions: 48mm * 29mm * 21mm</li><li>Range: DC4.50-30.00V</li><li>Display: four digits 0.36"LED digital tube</li><li>Display color: BLUE</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41pcHlXELSL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41IBRlwc7JL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51djS827HCL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51obyfYrLuL.jpg" noproxy>