Features 1、Reverse connection protection, and there is only two wires, easy to connect and use. 2、LCD screen with blue/green/white backlit. 3、Equipped with a PVC film, the surface is waterproof. 4、Built with buckle, free of screw installation. 5、Power-on shows the percentage of power, visually showing the remaining battery. Specification Features: Reverse connection protection, and there is only two wires, easy to connect and use. LCD screen with blue/green/white backlit. Equipped with a PVC film, the surface is waterproof. Built with buckle, free of screw installation. Power-on shows the percentage of power, visually showing the remaining battery. Specification: Type: Battery Capacity Voltage Meter Material: HTN / PCB Weight: Approx. 13.7g Size: Approx. 4.3 * 2.3 * 1.4cm Standard voltage: 12-48V Scope of application: battery or devices with battery Working temperature: -10 -50℃ Charging time: depends on matching battery Package list: 1 * Battery Capacity Voltage Meter 1 * Cable Note: 1. Please allow slight error due to manual measurement. 2. Different monitor colors may be different. Thanks for your kind understanding. Package List