3 in 1 Car Gauge Water Temperature Oil Pressure Voltmeter 52mm Digital Red Backlight | Waterproof Car Gauge

Keep a close watch on your engine's vital signs with this 3-in-1 digital car gauge. It measures water temperature, oil pressure, and voltage all in one compact 52mm unit, so you can monitor three critical systems at a glance. The bright red LED backlight makes the display easy to read, even in low-light driving conditions.

This gauge is built to handle tough environments. It features a 316 stainless steel casing and an IP67 waterproof and dustproof rating, which means it can stand up to moisture, humidity, and vibration inside the engine bay. The 100 percent imported MCU ensures stable and reliable performance over time.

Setting up the gauge is straightforward thanks to its wide compatibility with many sensor signal types. It works with 0 to 190 ohm and 240 to 33 ohm resistance sensors, 0 to 5 V and 0.5 to 4.5 V voltage sensors, and 4 to 20 mA current sensors. The gauge also has a built-in alarm system that triggers when water temperature exceeds 95 degrees Celsius or oil pressure drops below 0.8 Bar. A sensor disconnect alarm displays "OFF" if a connection is lost.

Whether you are building a custom dash, upgrading an older vehicle, or adding extra monitoring to a daily driver, this gauge delivers accurate readings and a clean, professional look. The high-brightness LED backlight lasts a long time and keeps the numbers sharp in direct sun or at night.

Key Features and Benefits

- Three functions in one display that saves dashboard space and reduces wiring complexity

• 316 stainless steel housing that resists corrosion from moisture, acid, and heat

• IP67 waterproof and dustproof rating that protects the electronics in wet or dusty engine bays

• Built-in alarm system for water temperature and oil pressure that alerts you before damage occurs

• Sensor disconnect alarm that immediately shows "OFF" when a sensor loses connection

• High-brightness red LED backlight that stays readable in bright sunlight and at night

• Wide operating voltage range from 9 to 32 volts DC that works with most 12V and 24V vehicle electrical systems

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

Who Is This For

- Car enthusiasts who want a clean, multi-function gauge for their custom dashboard or pillar mount

• DIY mechanics upgrading an older car that lacks factory coolant temperature or oil pressure readouts

• Truck and off-road vehicle owners who need rugged, waterproof gauges for harsh driving conditions

• Racers and track day drivers who rely on precise engine monitoring and early warning alarms

Usage Scenario

Mark drives a 1990s pickup he restored in his garage. The original instrument cluster had no oil pressure gauge and only a vague temperature warning light. He installed this 3-in-1 gauge in a single 52mm pod on the A-pillar. Now during his daily commute he can see exact oil pressure and coolant temperature. On a hot summer day the water temperature alarm went off before the engine overheated, giving him time to pull over and check the coolant level. That early warning saved him from a costly head gasket repair.

Micro Comparison

Unlike single-function gauges that require separate pods and wiring for each reading, this unit combines three critical measurements into one housing. The built-in alarm system also sets it apart from basic gauges that only display numbers without warning you of dangerous conditions. The IP67 waterproof rating gives it an edge over standard car gauges that can fog up or fail when exposed to moisture.

Specifications

Material: Stainless steel 316 and plastic

Size: 52 mm diameter

Color: Black housing with red LED backlight

Operating Voltage: 9 to 32 V DC

Power Consumption: Less than 60 mA

Operating Temperature: -30 to 75 degrees Celsius

Storage Temperature: -40 to 85 degrees Celsius

Degree of Protection: IP67

Water Temperature Alarm: Above 95 degrees Celsius

Oil Pressure Alarm: Below 0.8 Bar

Sensor Compatibility: 0 to 190 ohm, 240 to 33 ohm, 0 to 5 V, 0.5 to 4.5 V, 4 to 20 mA

Package Includes

- 1 x Gauge

• 1 x Wiring Harness

• 1 x Instruction Manual

Why You Will Love It

You get a complete engine monitoring solution in a single gauge that fits almost any dashboard. The bright red display and built-in alarms give you confidence that you will catch a problem before it becomes a breakdown. Plus the waterproof build means this gauge will keep working season after season.

Questions and Answers

Question: Will this gauge work with my 12V car?

Answer: Yes, it operates on 9 to 32 volts DC, so it works with standard 12V cars and 24V trucks.

Question: Does the gauge come with sensors?

Answer: The package includes the gauge, wiring harness, and instruction manual. Sensors are sold separately.

Question: Can I mount this gauge in a standard 52mm pod?

Answer: Yes, it has a 52mm diameter and fits most standard gauge pods and mounting kits.

Question: What does the alarm sound like?

Answer: The gauge has a built-in visual alarm that turns on a warning light when water temperature exceeds 95 degrees Celsius or oil pressure drops below 0.8 Bar.

Question: Is the display readable in direct sunlight?

Answer: Yes, the high-brightness red LED backlight stays clear and sharp even in bright daylight.

Question: Can I connect this gauge to aftermarket sensors?

Answer: Yes, it works with many analog sensor signals including 0 to 190 ohm, 240 to 33 ohm, 0 to 5 V, 0.5 to 4.5 V, and 4 to 20 mA.