52mm Blue LED Water Temp Gauge | Universal Racing Radiator Sensor Kit

Monitor your engine's water temperature with precision using this 52mm blue LED backlit gauge. Designed for universal fitment, it reads temperatures from 40 to 120 degrees Celsius and includes a sensor adapter for easy installation in your car or boat.

This water temperature gauge gives you a clear, real-time reading of your coolant system. The bright blue LED backlight makes it easy to see at night or in low-light conditions, so you always know your engine is running at the right temperature.

The gauge comes with a temperature sensor and a set of aluminum adapters in multiple sizes. These adapters let you install the sensor into different radiator hoses or pipes without needing extra parts. The setup is straightforward, making it a practical upgrade for any vehicle.

Built with a durable plastic and metal housing, this 52mm gauge is built to handle the vibrations and heat under the hood. It operates on a standard 12V system and draws a low current of 0.3A, so it won't strain your electrical system.

Key Features and Benefits

- 52mm gauge face that fits standard dash pods and mounting cups for a clean, professional look

• Blue LED backlight that improves visibility during nighttime driving or in dark engine bays

• Measures water temperature from 40 to 120 degrees Celsius to help prevent overheating

• Includes an NPT 1/8-inch sensor thread and multiple adapter sizes (28mm, 30mm, 32mm, 34mm, 36mm, 40mm) for universal radiator and hose fitment

• Low power draw at 12V DC and 0.3A max, making it safe for most vehicle electrical systems

• Aluminum adapter resists corrosion for long-lasting performance in wet engine environments

Who Is This For

- Car enthusiasts who want to add or replace a water temperature gauge in a custom dashboard

• Boat owners who need a reliable marine-grade temperature monitoring solution

• Mechanics or DIY builders working on engine swaps, radiator upgrades, or cooling system repairs

• Racers who need precise temperature readings to avoid engine damage during high-performance driving

Usage Scenario

Mark had just finished installing a new aluminum radiator in his project car. He needed a way to keep an eye on coolant temps, especially during summer track days. He mounted this 52mm blue LED gauge into his dash, connected the sensor to the radiator hose using the included adapter, and wired it to a 12V source. Now he can see his engine temperature at a glance, even under direct sunlight, and he feels confident pushing the car harder without worrying about overheating.

Micro Comparison

Unlike basic mechanical gauges that require a capillary tube running into the cabin, this electric gauge uses a simple sensor wire for a cleaner installation. The included set of aluminum adapters means you don't have to buy extra fittings to match your radiator hose size. Many other universal gauges only come with one adapter, so this kit saves you time and money.

Specifications

Gauge diameter: 52 mm / 2.0 in

Gauge height: 68 mm / 2.7 in

Gauge weight: 85 g / 3.0 oz

Measurement range: 40 to 120 degrees Celsius

Power: 12V DC, 0.3A max

Sensor thread: NPT 1/8 inch

Housing material: Plastic and metal

Adapter material: Aluminum

Adapter colors: Black (gauge body), Blue (adapter)

Adapter sizes included: 28 mm, 30 mm, 32 mm, 34 mm, 36 mm, 40 mm

Package size: 17 x 12 x 7.8 cm / 6.7 x 4.7 x 3.1 in

Package weight: 0.5 kg / 1.1 lb

Package Includes

Package 1:

1 x Water Temperature Meter

1 x Sensor

1 x Bolts Pack

1 x Temperature Gauge Adapter

2 x Hose Clamps

Package 2:

1 x Water Temperature Meter

1 x Sensor

1 x Bolts Pack

Package 3:

1 x Black Holder

Why You Will Love It

You get a complete monitoring kit that includes the gauge, sensor, and multiple adapters, so you don't have to hunt for extra parts. The blue LED backlight adds a sporty look to your interior while giving you critical engine data. It is a straightforward upgrade that helps you catch cooling issues before they turn into expensive repairs.

Questions and Answers

Question: Will this gauge work with a 12V car battery?

Answer: Yes, it runs on 12V DC and draws a maximum of 0.3 amps.

Question: What temperature scale does this gauge use?

Answer: It displays temperature in degrees Celsius, from 40 to 120.

Question: Does it come with a sensor?

Answer: Yes, the package includes a temperature sensor with an NPT 1/8-inch thread.

Question: Can I use this in a boat?

Answer: Yes, it is designed for universal fitment and works in both cars and boats.

Question: What size hose will the adapters fit?

Answer: The kit includes six adapters: 28mm, 30mm, 32mm, 34mm, 36mm, and 40mm.

Question: Is the backlight always on or switchable?

Answer: The blue LED backlight is always on when the gauge is powered, providing continuous visibility.

Question: Do I need to buy any extra wiring or connectors?

Answer: No, the gauge comes with the necessary bolts and a sensor. You just need to connect it to a 12V power source.