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 MeterMaterial: ABSLight Color: GreenModel: LY7SStorage Temperature: -20 to 60Operating Temperature: -20 to 50Suitable for: RV, battery car, etc..Package List:1 xBattery Meter1 x CableNote:Bayonet type electric meter with housing is more convenient to install.