Custom 85mm Marine Boat Rudder Angle Gauge | 0-190ohm with Sensor for Ship Yacht

This 85mm marine rudder angle gauge gives you clear, real-time feedback on your boat's rudder position. Designed for both port and starboard indication, it works with a 0-190ohm signal to help you steer with confidence. Whether you are docking, navigating tight channels, or cruising open water, knowing your rudder angle at a glance makes every maneuver smoother and safer.

The gauge features a waterproof IP67-rated housing, so it holds up against spray, rain, and the demanding conditions of a marine environment. A bright red backlight keeps the display easy to read in low light or at night, which is a practical advantage when you are running the boat after sunset or in poor visibility.

This kit includes the gauge and a matching rudder angle sensor, giving you a complete setup for monitoring your steering system. The sensor connects directly to the gauge and sends a 0-190ohm signal that translates into a clear PORT-STBD reading on the dial. Installation is straightforward for anyone comfortable with basic marine electrical work.

Built with a stainless steel and plastic construction, this gauge is made to last on saltwater vessels. It operates on a 9-32VDC power supply, making it compatible with most 12V and 24V electrical systems found on yachts, sailboats, powerboats, and commercial ships.

Key Features and Benefits

- 85mm gauge diameter that provides a large, easy-to-read display for quick rudder angle checks

• IP67 waterproof rating that protects against water ingress in wet marine conditions

• Red backlight that improves visibility during nighttime or low-light navigation

• 0-190ohm signal compatibility that works with most standard rudder angle sensors

• Stainless steel and plastic construction that resists corrosion and wear in saltwater environments

• Wide 9-32VDC operating voltage that fits both 12V and 24V boat electrical systems

Who Is This For

- Boat owners who want a reliable rudder angle indicator for safer docking and maneuvering

• Marine technicians upgrading an older or non-functional gauge on a yacht or powerboat

• Sailors who need precise rudder feedback when navigating narrow channels or tight marinas

• Commercial vessel operators looking for a durable, waterproof gauge for daily use

Usage Scenario

Mark was bringing his 38-foot cruiser into a crowded marina after a long day on the water. The wind was pushing him sideways, and he needed to know exactly where his rudder was pointed to avoid drifting into the neighboring slip. With the 85mm rudder angle gauge mounted on his dash, he could see the needle move from PORT to STBD in real time. He adjusted his throttle and wheel position based on the reading, sliding into his berth without a single bump. That kind of control made him feel confident every time he came back to port.

Micro Comparison

Many basic rudder indicators use smaller gauge sizes or lack waterproofing, which can lead to fogging or failure in wet conditions. This 85mm gauge offers a larger, more readable face with an IP67 rating that keeps moisture out. The included 0-190ohm sensor is matched to the gauge for reliable signal accuracy, so you get a complete system instead of piecing together parts that may not work well together.

Specifications

- Material: Stainless steel + plastic

• Gauge Diameter: 85mm

• Install Diameter: 52mm / 2-1/16 in

• Indication Range: PORT to STBD

• Input Signal: 0-190 ohm

• Working Voltage: 9-32VDC (12V / 24V)

• Working Current: ≤60mA

• Operating Temperature: -30°C to +75°C / -22°F to +167°F

• Storage Temperature: -40°C to +85°C / -40°F to +185°F

• Grade of Protection: IP67

• Backlight: Red

• Sensor Resistance: 0-190 ohm

• Sensor Material: Stainless steel, plastic

• Sensor Connection: 2 wires

• Sensor Voltage: 12V-24V

Package Includes

Package A (Gauge Only):

• 1x 85mm Rudder Angle Indicator

• 1x Instruction Manual

• 1x Cable

Package B (Gauge with Sensor):

• 1x 85mm Rudder Angle Indicator

• 1x Rudder Angle Sensor

• 1x Instruction Manual

• 1x Cable

Why You Will Love It

You will appreciate having a clear, waterproof gauge that tells you exactly where your rudder is pointed, even in rough weather or darkness. The complete kit saves you the hassle of sourcing a matching sensor separately. It is a straightforward upgrade that gives you better control and more confidence every time you take the helm.

Questions and Answers

Question: Will this gauge work with my existing rudder sensor?

Answer: It is designed for a 0-190ohm signal. If your current sensor outputs that range, it should work. The kit also includes a matching sensor for a complete setup.

Question: Is the gauge fully waterproof?

Answer: Yes, it has an IP67 rating, which means it is protected against water spray, rain, and temporary submersion.

Question: What size hole do I need to cut for installation?

Answer: The required installation hole diameter is 52mm or 2-1/16 inches.

Question: Does the gauge work with both 12V and 24V systems?

Answer: Yes, it operates on 9-32VDC, so it works with standard 12V and 24V marine electrical systems.

Question: Can I use this gauge on a sailboat?

Answer: Absolutely. It works on any vessel that needs rudder angle feedback, including sailboats, powerboats, yachts, and commercial ships.

Question: What color is the backlight?

Answer: The backlight is red, which helps preserve night vision and is easy on the eyes in low-light conditions.

Question: Does the package include the sensor?

Answer: It depends on which option you choose. Package A includes the gauge only. Package B includes both the gauge and the rudder angle sensor.