Specification: Features:_x000D_Reverse connection protection, and there is only two wires, easy to connect and use._x000D_LCD screen with blue/green/white backlit._x000D_Equipped with a PVC film, the surface is waterproof._x000D_Built with buckle, free of screw installation._x000D_Power-on shows the percentage of power, visually showing the remaining battery._x000D__x000D_Specification:_x000D_Type: Battery Capacity Voltage Meter_x000D_Material: HTN / PCB_x000D_Weight: Approx. 13.7g_x000D_Size: Approx. 4.3 * 2.3 * 1.4cm_x000D_Standard voltage: 12-48V_x000D_Scope of application: battery or devices with battery_x000D_Working temperature: -10 -50_x000D_Charging time: depends on matching battery_x000D_ _x000D_Package list:_x000D_1 * Battery Capacity Voltage Meter_x000D_1 * Cable_x000D__x000D_Note:_x000D_1. Please allow slight error due to manual measurement._x000D_2. Different monitor colors may be different. Thanks for your kind understanding. Features: 1Reverse connection protection, and there is only two wires, easy to connect and use. 2LCD screen with blue/green/white backlit. 3Equipped with a PVC film, the surface is waterproof. 4Built with buckle, free of screw installation. 5Power-on shows the percentage of power, visually showing the remaining battery. PackageList: