TRADERPLUS LCD Car Cigarette Lighter Digital Car Voltmeter 12V/24V Vehicle Voltage Gauge Monitor Tester for Auto Car Truck<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Screen digital color: Red </span></li><li><span class="a-list-item"> Voltage: Used for DC 12V or 24V car </span></li><li><span class="a-list-item"> Measuring range: DC 8V-30V </span></li><li><span class="a-list-item"> Constantly monitor battery voltage， extend and protect the battery and engine life </span></li><li><span class="a-list-item"> When engine running(do not drive)， the LED display:. Between 13.5 to 14.5 (12V Car). Between 26.0 to 28.0 (24V Car) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41pk9%2BSR-RL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41emc5ri8UL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41BqfPib0HL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41CHY3YCeHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51WRiTIPbIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41y83Oy4J7L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41UOmOXnrWL.jpg" noproxy>