Digital Voltage Meter DC 12-24V Waterproof Round Meter Car Voltmeter with LED Digital Display Panel for Car Motorcycle Boat RV Specifications: Type:Voltmeters Working voltage:12-24V Measurement range:6-30V Material:ABS Round Diameter: about 2.6cm Display Type:Digital display LED Color:Red / Blue / Green Features: 1.Universal for Motorbike Car / Boat / ATV / UTV / Camper / Caravans / Travel Trailer etc. 2.Twist-and-Lock system. Display: 3-bits, LED digital tube, lamp display is Green. 3.It works for 12V-24V. Gimax size and easy to install,work great for checking Voltage. 4.The state of your battery between full charged and discharged. 5.The meter has easy to read LED segments and connect to your 12 volt system. 6.Used to monitor the storage-battery voltage, with reverse connection protection function, line will not be burnt. 7.Timely grasp the state of battery voltage, voltage measurement purposes can also be used for other products. Package List: 1 * LED voltmeter with panel 2 * Blue Insulated Terminals 1 * 60cm connect wire with 10A fuse(optional) _x000D_