Features 1、Battery Percentage: Our battery monitor can do battery power percentage observation, so you can know the battery capacity situation like the back of your hand. 2、Realtime Monitoring: This battery monitor can detect the battery capacity and voltage status in high definition and realtime, which is very useful. 3、Security Protection: The meter has the security protection capability, such as reverse connection protection, which can ensure that the meter is safe. 4、Waterproof Exterior: The face of this meter is waterproof, and wear and corrosion proof, you can not worry about it being watered. 5、Easy to Connect: The positive and negative terminals are directly connected, so the meter is very easy to connect, just follow the normal process to install successfully, sturdy and durable. Specification Item Type: Battery Monitor Material: ABS Display Color: Blue Model: LY6N Applicable Scenes: Applicable to RV, electromobile, etc. Package List 1 x Battery Monitor 1 x Wire 4 x Screw