1、Tachometer with Hour Meter: The 85mm tachometer uses a stepper motor to drive the pointer, which accurately displays the engine speed 0‑3000RPM and the accumulated hours 0.0‑99999.9H. 2、Waterproof: Made of stainless steel cover ring and curved glass cover, with anti fog, waterproof and dustproof functions, which is very suitable for harsh sea environment. 3、High Accuracy: With a red backlight for night viewing. The pointer display has the characteristics of high indication accuracy, strong universality, reliability, stability and ease of use. 4、Energy Saving: Ultra wide working voltage design, working power 9‑32V, low power consumption, long service life, high precision, short starting time. 5、Wide Application: Tachometer gauge can also be used for a long time in acid, alkali and humid environments, and can be used in RV vehicles, yachts, fishing boats, ships, auto modification and other fields. 1 x Tachometer1 x Manual Item Type: TachometerMaterial: Stainless steel ring, anti fog glass, PCColor: Black panel silver coverDisplay Range: 0-3000RPMAccumulated Hours: 0.0- 99999.9HBacklight Color: RedWorking Voltage: DC 9-32VInstallation Size: Approx. 85mm/ 3.35inFunction: Display speed and cumulative speedApplication: RV, yacht, fishing boat, ship, automobile modification and other fields