2" 52mm Water Temperature Gauge 0~120℃ 7 Color Backlight | Universal Marine Car Boat RV Temp Meter

Monitor your engine coolant temperature with clarity and style. This 52mm water temperature gauge delivers precise readings from 0 to 120℃, featuring a 7-color backlight that lets you match your dashboard or personal preference. Built for marine, automotive, boat, and RV use, it operates on a wide 9-32V power range and includes a stainless steel 316L bezel for lasting durability.

Reading your engine temperature should be simple and reliable. This gauge offers a clear analog display with a customizable glow. Press the back button on the gauge to cycle through red, yellow, orange, green, blue, purple, or white backlight. The front cover is IP67 rated, providing strong protection against water splashes and dust in demanding engine compartments.

Installation is straightforward with a standard 52mm cutout diameter. The gauge comes with a wiring harness and instruction manual to help you get connected. Note that the water temperature sensor is sold separately, giving you the flexibility to choose the correct thread type for your engine block, including 1/8NPT, 3/8NPT, M14, or M16.

Whether you are upgrading an old gauge or building a new dash, this temperature meter fits a wide range of vehicles and vessels. The 316L stainless steel bezel resists corrosion, making it a smart choice for saltwater environments. With 7 backlight colors and a wide voltage input, it adapts to both 12V and 24V electrical systems commonly found in cars, boats, and RVs.

Key Features and Benefits

- 52mm diameter gauge fits standard dash openings for easy replacement or new installation

• 7-color backlight lets you match your dashboard lighting or set a mood with red, yellow, orange, green, blue, purple, or white

• Wide 9-32V operating voltage works with most 12V and 24V electrical systems in cars, boats, and RVs

• Stainless steel 316L bezel and anti-fog glass provide corrosion resistance and clear reading in humid conditions

• IP67 front cover protects against water and dust ingress in engine compartments

• Indication range of 0 to 120℃ covers normal and high engine operating temperatures

Who Is This For

- Boat owners who need a corrosion-resistant temperature gauge for marine engines

• Car enthusiasts upgrading their dashboard with a modern, color-customizable gauge

• RV owners who want a reliable coolant temperature monitor for long road trips

• DIY mechanics replacing a broken or inaccurate water temp gauge in any 12V or 24V vehicle

Usage Scenario

Mark is restoring a classic fishing boat and wants a clean, modern dash. His old temperature gauge is foggy and unreliable. He installs this 52mm water temp gauge in the standard cutout, connects the wiring harness to his 12V system, and chooses a green backlight to match his other instruments. The anti-fog glass stays clear even on humid mornings, and the stainless bezel holds up against salt spray. He orders the correct M16 sensor separately and threads it into the engine block. Now he can watch his coolant temperature at a glance and avoid overheating during long days on the water.

Micro Comparison

Many basic temperature gauges offer only a single fixed backlight color, which can clash with your dashboard at night. This gauge gives you seven color choices so you can match or contrast your existing instruments. It also runs on a wider 9-32V voltage range compared to standard 12V-only gauges, making it suitable for both cars and heavy-duty 24V trucks or RVs. The stainless steel 316L bezel provides better corrosion resistance than chrome-plated plastic alternatives, especially in marine environments.

Specifications

- Diameter: 52 mm / 2.0 in

• Indication Range: 0 to 120℃ / 32 to 248℉

• Working Voltage: 9 to 32V DC

• Working Current: ≤60mA

• Input Signal: 287.4 to 22.4 ohm

• Operating Temperature: -30℃ to +75℃ / -22℉ to +167℉

• Storage Temperature: -40℃ to +85℃ / -40℉ to +185℉

• Waterproof Rating: Front cover IP67, back cover IP5

• Bezel Material: Stainless steel 316L

• Lens: Anti-fog glass

• Backlight Colors: Red, yellow, orange, green, blue, purple, white

Package Includes

- 1 x Water Temp Gauge

• 1 x Wiring Harness

• 1 x Instruction Manual

Why You Will Love It

You get full control over your dashboard look with seven backlight colors in one gauge. The stainless steel build and IP67 front cover mean it can handle tough engine bay conditions without fogging or rusting. It works with both 12V and 24V systems, so you can use it across multiple vehicles or upgrade your boat without buying a separate gauge.

Questions and Answers

Question: Does this gauge come with a water temperature sensor?

Answer: No, the sensor is sold separately. You can choose from 1/8NPT, 3/8NPT, M14, or M16 thread options.

Question: What voltage does this gauge work with?

Answer: It operates on 9 to 32V DC, so it works with standard 12V car systems and 24V truck or RV systems.

Question: How do I change the backlight color?

Answer: Press the back button on the gauge to cycle through red, yellow, orange, green, blue, purple, and white.

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

Answer: The gauge requires a 52 mm / 2.0 in diameter cutout.

Question: Is this gauge suitable for saltwater boats?

Answer: Yes, the stainless steel 316L bezel and IP67 front cover provide good corrosion and water resistance for marine use.

Question: What temperature range does this gauge measure?

Answer: It measures from 0 to 120℃ / 32 to 248℉.