1、Suitable for all kinds of level sensors, and display the liquid level of the water tank. 2、Use moving‑magnet principle to drive the needle, featuring good endurance and anti‑vibration. 3、It can remind you that the water level reading is higher or lower than the normal level to ensures your driving safety. 4、With backlight indicator, it is suitable for 12V systems to prevent overheating or cold. 5、It is directly installed in the 52mm/2 inch hole, simple to operate and easy to use. 6、Suitable for all water‑cooled engines with sensor threaded connections. 7、Advanced manufacturing technology, high performance, stable and reliable. 8、Simple and strong structure, excellent corrosion resistance, which has long service life. 9、Suitable for ships, trucks, RVs, generators/generator sets, buses and marine fields.