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

Key Features

• Red LED Backlight — The red LED backlight keeps the readout easy to read in low light.
• Flashing Overheat Alarm — The gauge starts flashing when the water temperature goes above 96℃, warning you of overheating before engine damage occurs.
• 12V and 24V Systems — It works on both 12V and 24V systems for cars, trucks and boats.
• Temperature Sensor Included — The package includes one 1/8NPT 10mm temperature sensor.

Product Specifications

• Color: Red
• Material: Plastic
• Gauge size: 52mm
• Temperature range: 0-100℃ / 32-212℉
• Alarm activation: Flashes above 96℃ / 205℉
• Backlight: Red LED
• Electrical system: 12V and 24V
• Weight: 140g / 4.9 oz

What It Is / How It Works

This 52mm red LED water temperature gauge shows coolant temperature from 0 to 100℃ (32 to 212℉). Water temperature gauges are dashboard instruments that display engine coolant temperature so drivers can notice overheating early.

Who It's For / Use Cases

Car owners upgrading an older vehicle or adding a monitor to a project car are a good fit for this type of gauge. Boat owners who want a coolant temperature readout with an overheat alarm can use it as well. DIY mechanics working on classic or off-road vehicles that lack modern gauges are another common group.

How to Use / Care

1. Install this water temperature gauge in a car or boat.
2. Use it on a 12V or 24V electrical system.

How to Choose

Start with the opening you have. This gauge is 52mm (2 inch), so match it to the dashboard pod or mounting hole. Check that your vehicle or boat runs a 12V or 24V electrical system, since the gauge works on both. If you want a warning before overheating, choose a model with a flashing alarm.

Frequently Asked Questions

What temperature does the alarm start flashing?
It starts flashing when the water temperature goes above 96℃ (205℉).

Does this gauge work on a 12V car battery?
Yes, it works on both 12V and 24V DC systems.

What size is the gauge?
It is 52mm, or about 2 inches, in diameter.

Does it come with a sensor?
The package includes one 1/8NPT 10mm temperature sensor.

Is the backlight always on?
The red LED backlight is on whenever the gauge is powered.