Universal for: Motorcycle / boat / ATV / UTV / / / travel trailer, etc.Turn and lock system. Display: 3-bits, LED digital tubeIt works for 12V-24V. Mini size and easy to install, they work for tension control.The state of the battery between full charge and discharge.The meter has easy to read LED segments and connect to your 12 volt system.It is used to control the voltage of the storage battery, with the function of reverse connection protection; it will not be burned line. capture the state of tension of the battery, for measuring voltage purposes can also be used for other products.Specifications:WaterproofColor: BlackLED display: BlueVoltage Measure: 6-30VSize: 1.4 inchx 1.4inch x 0.5 inchInterface type: anode and cathodeEcological Meter: PlasticApplication: Universal for all , motorcycles and other universal models.Package includes:1 x LED DC voltmeter2 x blue Isolated terminalsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.