Features 1、Real Time Monitor: This high definition meter could monitor the battery capacity and voltage status in real time, so you can know the battery situation easily. 2、Reverse Connection Protection: The connection mode is positive and negative direct connection, with anti reverse connection protection design, safer to use. 3、Waterproof Design: The surface of this battery capacity indicator is waterproof designed, which is more secure when rainy days outgoing. 4、Compact and Portable: The battery capacity gauge is compact in size and light in weight, easy to carry and install. 5、Multi Purpose: The battery monitor can be used for RV, electric vehicle and more, displays clearly, very practical and useful. Specification Item Type: Battery Meter Material: ABS Model: LY6W Display Screen Display Color: Blue Storage Temperature: -20℃ to 60℃ Operating Temperature: -20℃ to 50℃ Application: Suitable for RV, electric vehicle and more Package List 1 x Battery Meter 1 x Cable 4 x Screw