Gauge Backlight Adjust ,pls cheacking in this video :Gauge Specifications:- Input signal: R ohm - Indication range: E-F - Working current: 60mA - Install diameter: 52mm - Working voltage: 9~32VDC - Storage temperature: -40~+85 - Operating temperature: -30~+75 - Water Level Gauge Waterproof : front cover IP67 ,back cover IP5 - Backlight: (7 colors ) red.green.blue.yellow.olive . orange.purpleSensor Specifications:- Protection ank: IP67 - Resolution range: 21 mm - Assembly: SAE standard 5 holes - Rated current for alarm switch: 500mA - Operating temperatures: - 40 to 85 Celsius - Fit for Fuel Level Gauge and Water Level Gauge - Sensor Length :100MM~1500MM - Mounting: 5 pieces of M5 screws and 2 mm thick gasket - Output signal: 0~190 ohm (Standard European),Sensor Connection:Blue wire: connect the ground wire Brown wire: connect the gauge signal wire Empty oil level 0 ohm Full oil level 190 ohm Please attention : 0~190 ohm sensors can only be applied to 0~190 ohm fuel gauge.Can be customized:Sensor Length: 100mm, 150mm, 200mm, 250mm, 300 mm ,350 mm ,400mm, 450 mm,500mm, 550mm, 600mm, 650mm, and so on Output signal: 0~190 ohm (Standard European), 240~33 ohm (Standard American) and so on The length and output signal of the sensor can be customized, if you need other sizes or output signal, please contact us at any time, we can customize any size for you~~Package Include:Package 1 1 x 52mm Gauge 1 x Sensor 1 x Gasket 5 x Screws Package 2 1 x 52mm Gauge