XCSOURCE Universal Digital Display Voltmeter Waterproof Voltage Meter Blue LED for DC 12V-24V Car Motorcycle Auto Truck BI313<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Universal for: Motorbike Car / Boat / ATV / UTV / Camper / Caravans / Travel Trailer etc.</li><li>Twist-and-Lock system. Display: 3-bits， LED digital tube， lamp display is Blue / Green.</li><li>It works for 12V-24V. Mini size and easy to install，work great for checking Voltage.</li><li>Mounts in a 1-1/8" hole in panels up， 0.25" thick， a nylon retaining nut holds the meter in place.</li><li>Used to monitor the storage-battery voltage， with reverse connection protection function， line will not be burnt.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41SlYe6blrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/513HTzY-NmL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51iZ4ea5L4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41eBYdaahSL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41uzBtUMTNL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/419ePvMsTFL.jpg" noproxy>