85mm Pointer Tachometer RPM Tacho Gauge IP67 Stainless Steel Universal for Car Boat Marine Black.

1. With the use of a stepper motor, which can effectively improve the sensitivity of the gauge. 2. The pointer tachometer has low power consumption, a long lifespan, high accuracy, and high clarity. 3. Due to the red backlight function of the numbers and pointer, it is easy to read in the dark. 4. Use the English user manual for easy installation. It is highly recommended that most cars or engines be installed by professionals. 5. Made of high-quality ABS and stainless steel, sturdy and durable, long service life. Specification: Item Type: Pointer Tachometer Material: ABS + Stainless Steel Diameter: Approx. 85 mm/3.35 inches Voltage: 9-32VDC Waterproof and Dustproof Rating: IP67 Suitable for: Car/Truck/Boat/Diesel Generator/Gasoline Engine How to Use: Installation: 1. 1. Cut a hole with a diameter of 85 mm/3.35 inches in the instrument mounting plate and ensure there is at least 55 mm/2.17 inches of clearance behind the instrument. 2. Place the gauge in the open hole and tighten the back cover after adjusting its position. Parameters: 1. Press and hold the rubber button on the back of the gauge for 3 seconds to enter setting mode. If you release the button for more than 3 seconds, it will exit setting mode. 2. While holding the button, the value will continue to increase; while holding the button, the value will continue to decrease. The longer the button is held down, the faster the value will count. The minimum counting increment is 0.1, and the adjustable range is 1.0 to 360. 3. After adjusting the gear ratio to suit your needs, and the number of teeth on the flywheel, please release the button. After 3 seconds, the tachometer will automatically save your settings. If the result is not as expected, please reset it. Package contents: 1 x Tachometer, 1 x Manual