Feature:1. Premium Material: Tachometer is made of premium 316L stainless steel bezel, anti fog glass and high transparency PC material, sturdy and durable.2. Excellent Performance: Professional manufacturing, exquisite workmanship, IP67 waterproof and dustproof, can be used in harsh environment.3. Accurate: Boat tachometer can accurately display engine speed 03000RPM, with hourmeter display range 099999.9h, red backlight is easy to read.4. Wide Application: Waterproof tacho gauge is suitable for ships, fishing boats, yachts, outboard machineries and other kinds of water vehicle.5. Simple Installation: The installation is simple, connect firmly, with LCD display and stepper motor, convenient for using, save your time and energy.Specification:Item Type: TachometerMaterial: 316L stainless steel, anti fog glass, PCInput Signal: PulseDisplay Range Of Tachometer: 0-3000RPMDisplay Range Of Hourmeter: 0-99999.9HProtection Grade: IP67, completely waterproof, can work in 1m underwater position; Excellent anti fog function;Backlight Color: RedOperating Voltage: 9-32VDCOperating Current: 60mAOperating Temperature: -30 to +75Storage Temperature: -40 to +85Operation Mode: LCD display, stepper motor.Package List:1 xTachometer1 x User Manual