Fangrui Product Details Real-time Monitoring: This Precise 12v Led Digital Display Voltage Meter Enables Real-time Monitoring Of Your Vehicle Battery. The Display Is Accurate To 0.1v To Provide You With Accurate Information About The Condition Of Your Battery And Avoid Possible Damage. High Accuracy: Our Voltage Meter Offers Precise Readings Thanks To The Digital Display With An Accuracy Of 0.1v. The Voltmeter Is Equipped With A Clear And Easy-to-read 3-bit Led Display That Allows You To Quickly And Easily Record Voltage Values. And Waterproof: Equipped With A Robust Abs Housing That Is Fireproof And Waterproof To Ip65, This Voltmeter Is For Use In Various Vehicles In All Weather Conditions. Easy Installation: The Voltage Meter Is Designed For Easy Installation With Plug-and-play Installation. All Necessary Screws And Insulated Terminals Are Included, Allowing You To Install It Quickly And Easily. Versatile Compatibility: Suitable For A Wide Range Of Dc 12v Vehicles Such As Cars, Motorcycles, Buses, Rvs, Trailer