1、8 backlight color : red, green, blue, white, yellow, olivine, orange, purple, it will change automatically every 1 minute. You can fix only one color you like by pressing the gauge back ''set'' button. 2、It can remind you that the fuel level reading is higher or lower than the normal level to ensures your driving safety. 3、The front cover of the instrument is made of 316L stainless steel, which can be used for a long time even in acid, alkali and humid environments, and the curved glass with anti‑fog function. 4、Adopts ultra‑wide working voltage designed, long‑term working voltage: 9‑32V, up to: 36V <1 minute. 5、Wide application, can be used in engines, generator sets, ships, construction machinery, agricultural machinery, automotive conversion and other fields.