3000RPM Tachometer 85mm with Sensor | Diesel Engine Marine Boat Car RPM Gauge Hour Meter Red Backlight

This 85mm tachometer with sensor gives you a clear, real-time read of your engine's RPM and running hours. Designed for diesel and gasoline engines, it features a red backlit display that is easy to read in low light. The gauge is a practical upgrade for anyone who needs to monitor engine performance on a boat, truck, car, or generator.

The tachometer provides accurate readings up to 4000 RPM and includes a built-in hour meter to track engine run time. This helps you stay on top of maintenance schedules and monitor engine load. The included sensor makes installation straightforward, and the 85mm diameter fits standard gauge panels.

Built with a durable plastic shell, this gauge operates on a wide voltage range from 9 to 32V DC. It is a versatile tool for keeping your engine running smoothly and reliably. Whether you are upgrading an old gauge or adding one to a new setup, this tachometer delivers the information you need at a glance.

Key Features and Benefits

- 85mm diameter gauge that fits standard dashboard openings for a clean, professional look

• Red backlight that improves visibility in dark or dim engine rooms and cockpits

• Built-in hour meter that tracks total engine run time for easier maintenance planning

• Included sensor that simplifies the installation process and ensures accurate signal pickup

• Wide operating voltage range from 9 to 32V DC for use in 12V and 24V electrical systems

• High precision readings up to 4000 RPM for monitoring both idle and high-speed operation

Who Is This For

- Boat owners who want to monitor marine diesel or outboard engine RPM and hours

• Truck and van operators needing a reliable tachometer for diesel engine performance tracking

• Car enthusiasts upgrading their dashboard with a racing-style gauge that includes an hour meter

• Generator users who need to log engine run time for scheduled oil changes and servicing

Usage Scenario

Mark runs a small fishing charter and relies on his diesel boat engine day in and day out. He noticed the old tachometer was fading and no longer accurate. After installing this 85mm gauge with the included sensor, he could finally see exact RPM at cruising speed and track total engine hours. The red backlight makes it easy to read even at dusk when returning to the dock. He now schedules oil changes based on the hour meter, saving money and avoiding unexpected breakdowns.

Micro Comparison

Unlike basic tachometers that only show RPM, this gauge combines a tachometer and hour meter in one unit. The included sensor saves you the hassle of sourcing a separate pickup. Its wide voltage range makes it adaptable to both 12V and 24V systems, giving you more flexibility than single-voltage alternatives.

Specifications

- Diameter: 85 mm / 3.3 in

• Operating Voltage: 9~32V DC

• Indicating Range: 0~4000 RPM

• Material: Plastic Shell

• Backlight Color: Red

• Number Of Cylinders: 4

Package Includes

- 1x Tachometer

• 1x Sensor

Why You Will Love It

You get both RPM and hour tracking in one gauge, which simplifies your dashboard and your maintenance routine. The red backlight adds a sporty look while improving readability in low-light conditions. With the included sensor and clear display, you can install it with confidence and start monitoring your engine right away.

Questions and Answers

Question: Can this tachometer work on a 12V car battery?

Answer: Yes, it operates on 9 to 32V DC, so it works on both 12V and 24V systems.

Question: Does the gauge come with the sensor?

Answer: Yes, the package includes one tachometer and one sensor.

Question: What is the diameter of this gauge?

Answer: The diameter is 85 mm, which is about 3.3 inches.

Question: Can I use this on a 4-cylinder diesel engine?

Answer: Yes, it is designed to work with 4-cylinder engines.

Question: Is the backlight adjustable in brightness?

Answer: The backlight is red and fixed brightness. It is designed for clear visibility without adjustment.