1、Wide Applications: Suitable for a full range of stepping instruments, and can be used for engine generator sets, ships, construction machinery, agricultural machinery, car modification, etc. 2、IP67 Protection: IP67 waterproof and dustproof grade, with curved glass, antifog, no need to worry about possible damage caused by bad weather. 3、Advantages: Low power consumption, long lifespan and high accuracy. Ultra wide working voltage design, long term working voltage 9‑32V, maximum can up to 36V. 4、Installation: The installation diameter of the gauge is 52mm/2.05in. Make sure there is at least 55mm/2.17in behind the dashboard. 5、Quality Materials: Adopting 316 stainless steel, PVC and ABS, can be used even in acid, alkali and humid environments. Item Type: Water Level Gauge Material: PVC+ABS+316 Stainless SteelLight Color: 7 Colors Backlight (Adjustable) Installation Diameter: 52mm/2.05in, and Ensure that There is at Least 55mm/2.17in Space Behind the Dashboard Working Voltage: 9-32V Working Current: 18mA Signal: 0-190Ω Working Temperature: -30℃-+75℃ Storage Temperature: -40℃-+80℃ Applicable Scenarios: Universal for automobiles, engines, boats, RVs, yachts, engineering machinery, etc. 1 x Water Level Gauge 1 x Cap 1 x Manual