Product Name: DC 12V LED Display Voltmeter Waterproof for Boat Marine Vehicle Motorcycle Truck ATV UTV Car Camper Caravan Blue Digital Round Panel Model NO.: YJ-DS-4010 Installation Method: Combined Type Knock Sensor Type: Resonant Type Fuel Meter Type: Electromagnetic Voltage Meter Structure Type: Moving-magnet Type Tachometer Type: Electronic Speedometer Type: Electronic Crankshaft Position Sensor Type: Electromagnetic Pulse Type Throttle Position Sensor Type: Switch Contact Type Kind: Automobile Sensor Type: Electromobile Meter Trademark: Maiyu Transport Package: Batch Packaging Specification: 2 x 2 x 1 inches Origin: China HS Code: 9030331000 Product Description DC 12V LED Display Voltmeter Waterproof for Boat Marine Vehicle Motorcycle Truck ATV UTV Car Camper Caravan Blue Digital Round PanelIt works for 12v-24v, mini size and easy to install, work great for checking voltage, not recommend to use the voltmeter in a 24V car like truck/ lawnmowerTwist-and-lock system Display: 3-bits, LED digital tube, Lamp display is BlueUniversal for: motorbike car/ boat/ ATV/ UTV/ camper/ caravans/ travel trailer etc.Mounts in a 1-1/8" hole in panels up, 025" thick, a nylon retaining nut holds the meter in placeFit most of applications, such as: marine cockpits, Caravan applications, trucks, 4x4S and RV's MICTUNING voltmeter is high quality with completive price, it's the best choice for your batteryProduct informationColor:BlueTechnical DetailsBrandMaiyuItem Weight0.64 ouncesProduct Dimensions1.4 x 0.5 x 1.4 inches