Battery charge status Indicator with hour meter - two LED screens showing battery charge status graph, voltage or power volume percentage or running hour counting. It suits for lead acid battery, SAL battery and li-ion battery in electric vehicle, boat, sweeper and forklift. Notice:For li-ion or lifepo4 battery, it is required to learn more about the battery pack information like xSxP. Kindly provide voltage(12V, 24V or 36V, 48V, 60V，72V) in message when you release order! If user want to change settings in the menu, please input 7 in the "PAS" o the menu to unlock the menu. Display content: Battery’s remaining power volume LED bar with four colors (blue, green, yellow, red) Battery’s voltage (V) Battery’s charging percentage (%) Hours count (H) Specification: Display: 10 LED Bar (1 blue,4 green.3 yellow.2 red LEDs) + 3 digital number Operating voltage: 5-100V Operating current: Lower than 20mA Working temperature: -20̊C to 85̊C Dimension: housing case 60mm, cutout 50-52mm, U clamp:62x25x10mm