Wide Application: This monitor can be used for RV, battery car etc., with high definition, displays clearly, very practical and useful. Real Time Detect: This meter could real time monitor and display battery capacity and voltage status, keep you informed of battery status. Compact and Light: This capacity voltage meter is compact in size and light in weight, very convenient to carry and install. Connection Protection: This meter adopts positive and negative direct connection, designed with anti reverse connection protection, safer to use. Waterproof Design: This indicator is waterproof designed, more secure when rainy days outgoing, adopts ABS housing, very strong and sturdy. Feature: 1. Real Time Detect: This meter could real time monitor and display battery capacity and voltage status, keep you informed of battery status. 2. Connection Protection: This meter adopts positive and negative direct connection, designed with anti reverse connection protection, safer to use. 3. Waterproof Design: This indicator is waterproof designed, more secure when rainy days outgoing, adopts ABS housing, very strong and sturdy. 4. Compact and Light: This capacity voltage meter is compact in size and light in weight, very convenient to carry and install. 5. Wide Application: This monitor can be used for RV, battery car etc., with high definition, displays clearly, very practical and useful. Specification: Item Type: Battery Meter Material: ABS Light Color: Green Model: LY7S Storage Temperature: -20 to 60 Operating Temperature: -20 to 50 Suitable for: RV, battery car, etc. Package List: 1 xBattery Meter 1 x Cable Note: Bayonet type electric meter with housing is more convenient to install.