52mm Water Temperature Gauge with Flash Alarm | 40-120℃ Red LED Water Temp Meter for Car Boat 12V 24V

Keep your engine at the right temperature with this 52mm water temperature gauge. It gives you a clear red LED readout from 40℃ to 120℃ and flashes a warning light at 95℃. Built for cars and boats, it works on both 12V and 24V systems.

This gauge comes with a temperature sensor and all the wiring you need. The front cover is IP67 waterproof, so it can handle splashes and rain. The bright red backlight makes it easy to read day or night.

Installation is straightforward with a standard 52mm cutout. The gauge runs on low current, drawing less than 60mA. It stores safely from -40℃ to 85℃ and operates from -30℃ to 75℃, making it reliable in most weather conditions.

The alarm set point is fixed at 95℃. When the temperature reaches that level, the red indicator light starts flashing to warn you of potential overheating. This simple alert helps you take action before damage occurs.

Key Features and Benefits

- Red LED backlight that stays visible in bright sunlight and at night

• Flash alarm at 95℃ that gives you an early warning of overheating

• IP67 front cover waterproof rating that protects against water spray and rain

• Wide voltage range from 9V to 32V that works with most car and boat electrical systems

• Low power draw under 60mA that does not drain your battery

• Includes sensor and cable that saves you time finding compatible parts

Who Is This For

- Car owners who want a reliable water temperature monitor for their dashboard

• Boat operators who need a waterproof gauge for marine engines

• DIY mechanics installing an aftermarket cooling system upgrade

• Off-road vehicle owners who drive in dusty or wet conditions

Usage Scenario

Mark was driving his off-road buggy through a rocky trail when he noticed the temperature gauge needle climbing past 90℃. The red alarm light started flashing at 95℃, warning him to slow down and let the engine cool. He pulled over, checked the coolant level, and avoided a potential engine overheat. The gauge gave him the confidence to keep exploring without worrying about hidden damage.

Micro Comparison

Unlike basic temperature gauges that only show a needle, this model adds a flashing red alarm at 95℃ for an extra layer of safety. Many budget gauges lack waterproofing, but this one has an IP67 front cover that handles wet conditions. The included sensor and cable also save you from buying extra parts separately.

Specifications

Material: Plastic

Gauge Diameter: 52mm / 2.0 in

Indication Range: 40℃ to 120℃ / 104°F to 248°F

Working Voltage: 9V to 32V (12V and 24V systems)

Working Current: ≤60mA

Alarm Temperature: 95℃ / 203°F

Backlight: Red

Waterproof Rating: Front cover IP67, back cover IP5

Storage Temperature: -40℃ to 85℃ / -40°F to 185°F

Operating Temperature: -30℃ to 75℃ / -22°F to 167°F

Installation Diameter: 52mm / 2.0 in cutout

Package Includes

- 1 x Water Temperature Gauge

• 1 x Water Temperature Sensor

• 1 x Wiring Cable

• 1 x User Manual

Why You Will Love It

You get a clear temperature reading and a flashing warning light in one compact gauge. The waterproof design works on both your car and boat without worrying about water damage. Installation is simple with the included sensor and cable, so you can start monitoring your engine right away.

Questions and Answers

Question: What voltage does this gauge work with?

Answer: It works with both 12V and 24V electrical systems, covering most cars, trucks, and boats.

Question: Is the alarm adjustable?

Answer: No, the alarm is fixed at 95℃. It flashes red when the temperature reaches that point.

Question: Is the gauge waterproof?

Answer: The front cover is IP67 waterproof, meaning it can handle splashes and rain. The back cover is rated IP5.

Question: What size hole do I need to install it?

Answer: You need a 52mm (2.0 in) diameter cutout for installation.

Question: Does it come with a temperature sensor?

Answer: Yes, the package includes one water temperature sensor and the wiring cable.