Red LED Water Temperature Gauge 52mm | 0-120℃ Temp Sensor with Flashing Alarm

Keep your engine temperature in check with this 52mm red LED water temperature gauge. It comes with a 1/8NPT 10mm sensor and features a flashing alarm that activates when the temperature goes above 96℃. Designed for both 12V and 24V systems, this gauge is a practical choice for cars and boats.

This gauge gives you a clear red LED readout of your coolant temperature, ranging from 0 to 100℃. The bright display is easy to read at a glance, helping you monitor your engine's condition while driving or cruising. The included sensor threads directly into your engine's cooling system for accurate readings.

Safety is a key feature of this gauge. When the water temperature climbs above 96℃, the gauge starts flashing a warning. This alert lets you know something is getting too hot, giving you time to pull over and check your engine before any damage occurs. It works reliably on both 12V and 24V electrical systems, making it versatile for different vehicles.

The gauge is built with a durable plastic housing and fits into a standard 52mm / 2-inch dashboard opening. Installation is straightforward with the included 1/8NPT 10mm sensor. Whether you are upgrading an older car, adding a monitor to a project vehicle, or equipping a boat, this gauge provides essential temperature information with a useful safety alarm.

Key Features and Benefits

- Red LED backlight that provides a clear, easy-to-read display in low light conditions

• Flashing alarm activates above 96℃ to warn you of overheating before engine damage occurs

• Works on both 12V and 24V systems for flexible installation in cars, trucks, and boats

• Includes a 1/8NPT 10mm temperature sensor for direct engine coolant monitoring

• Standard 52mm / 2-inch gauge size fits most existing dashboard pods and mounting holes

• Durable plastic housing built to withstand the engine bay environment

Who Is This For

- Car enthusiasts adding or replacing a water temperature gauge in their vehicle

• Boat owners who need a reliable coolant temperature monitor with an overheat alarm

• DIY mechanics working on project cars, off-road vehicles, or classic cars without modern gauges

• Anyone who wants a simple, visual warning system to prevent engine overheating

Usage Scenario

Mark was driving his classic pickup on a long highway stretch when he noticed the red LED gauge start to flash. He had installed this water temperature gauge last month. The flashing alarm told him the coolant was above 96℃. He pulled over safely, checked the radiator hose, and found a small leak. A quick repair saved his engine from serious damage. The gauge gave him the early warning he needed.

Micro Comparison

Unlike basic temperature gauges that only show a needle reading, this model adds a flashing alarm that grabs your attention when the temperature gets high. The red LED display is also easier to read at night compared to standard white or blue backlights. This gauge includes the sensor and works on both 12V and 24V systems, saving you from buying extra parts.

Specifications

- Material: Plastic

• Gauge Size: 52mm / 2.0 in

• Temperature Range: 0-100℃ / 32-212℉

• Alarm Activation: Flashes above 96℃ / 205℉

• Backlight: Red LED

• Sensor Thread: 1/8NPT 10mm

• Operating Voltage: DC 12V / 24V

• Item Weight: 140g / 4.9 oz

Package Includes

- 1 x Water Temperature Gauge

• 1 x Temperature Sensor

Why You Will Love It

You get a clear temperature readout and a flashing alarm that warns you before your engine overheats. The gauge is easy to install with the included sensor and works on both 12V and 24V systems. It gives you peace of mind every time you drive, knowing you will see a problem before it becomes a costly repair.

Questions and Answers

Question: What temperature does the alarm start flashing?

Answer: The alarm starts flashing when the water temperature goes above 96℃.

Question: Does this gauge work on a 12V car battery?

Answer: Yes, it works on both 12V and 24V DC systems.

Question: What size is the gauge?

Answer: The gauge is 52mm or about 2 inches in diameter.

Question: Does it come with a sensor?

Answer: Yes, the package includes one 1/8NPT 10mm temperature sensor.

Question: Is the backlight always on?

Answer: The gauge has a red LED backlight that is on when the gauge is powered.

Question: Can I install this in a boat?

Answer: Yes, it is suitable for both cars and boats with 12V or 24V systems.