Product Info Select LED colour from drop down menu Select Mounting from drop down menu Black Housing with LED Display Monitor main and aux battery voltage in a wide variety of applications Black flush mount poly mounting plate for easy installation (if selected) Locking nut included (for mounting without panel) Includes: 1 x Dual Volt Meter Unit 1 x Flush mount panel (if selected) 1 x Locking ring/nut 2 x Black screws (if panel selected) 3 x Female terminals Description Dual Battery Volt Meter in 5 different colours. Our 12v Battery Monitor is ideally suited to automotive and marine purposes where you want to have an eye on your battery's condition. Dustproof and waterproof face allows the battery gauge to be mounted in a variety of locations in your vehicle. This battery meter has a universal fit to any correctly sized cut out. If you match up the voltage gauge with a mounting panel you can cover over exiting cut outs for a clean factory look. 12v Battery Monitor allows you to track your car or caravans battery voltage with the 12 volt gauge. Ideal as a dual battery volt meter, this voltage gauge works perfectly in many scenarios. Specifications Size Of Cut Out Required for Item: 29mm ⌀Face Surface Size with Panel: 60.5mm (W) x 43mm (H)Face Surface Size without Panel: 36.5mm ⌀Depth: 35mm (Not including terminal length)Mounting Holes: 4mm Counter Sunk (if mounting panel selected)Mounting Hole Centres (Panel): 48mmInput Voltage: 12v-24v CLICK HERE to view the Sizing Guide.