52mm 7-in-1 Car Gauge Set | Digital Tachometer Boost PSI BAR Water Temp Oil Temp Oil Pressure Voltmeter Vacuum Air Fuel Ratio

Monitor seven critical engine parameters with a single 52mm gauge setup. This digital gauge system replaces the need for multiple individual meters, giving you boost pressure, water temperature, oil temperature, oil pressure, voltage, tachometer, and air-fuel ratio readings in one cohesive kit. Each gauge features a black ABS case with an aluminum rim and a blue LED digital display for clear visibility, day or night.

The set is designed for 12V gasoline vehicles with 4, 6, or 8 cylinders. Each gauge comes with its own sensor, wiring, and mounting hardware, making installation straightforward for DIY enthusiasts or professional mechanics. The compact 52mm diameter fits standard gauge pods and dash openings.

Built with high-precision sensors, this system provides real-time data to help you spot issues before they become major problems. The boost gauge measures from -14 to 29 PSI or -1 to 2 BAR, while the water and oil temperature gauges read from 40 to 150 degrees Celsius. The oil pressure gauge covers 0 to 150 PSI, the voltmeter reads 8 to 18V, the tachometer goes up to 9999 RPM, and the air-fuel ratio gauge measures 0 to 120 PSI. Each gauge includes a red warning light that activates at preset thresholds.

Whether you are tuning a turbocharged engine, monitoring a high-performance build, or simply keeping your daily driver in top shape, this gauge set gives you the data you need. The package includes mounting brackets, screw knobs, PVC hoses, T-fittings, and English installation instructions for every gauge.

Key Features and Benefits

- Seven gauges in one set that covers boost, temperature, pressure, voltage, RPM, and air-fuel ratio for complete engine monitoring

• 52mm diameter with black ABS case and aluminum rim that fits standard gauge pods and dash openings

• Blue LED digital display with red warning lights that provides clear readings and alerts you to potential problems

• High-precision sensors with NPT 1/8 inch threads that deliver accurate measurements for tuning and diagnostics

• 12V DC power with 0.3A max draw that works with most gasoline vehicle electrical systems

Who Is This For

- Car enthusiasts who want to monitor turbo boost, engine temperatures, and oil pressure in a single setup

• DIY mechanics who need reliable gauges for engine tuning and performance diagnostics

• Owners of 12V gasoline vehicles with 4, 6, or 8 cylinders looking to add or upgrade their dashboard gauges

• Anyone building a custom gauge cluster who needs compact 52mm gauges with matching aesthetics

Usage Scenario

Mark noticed his turbocharged sedan was running hotter than usual during summer track days. He installed this 7-in-1 gauge set to keep an eye on boost pressure, water temperature, and oil temperature simultaneously. During one session, the water temp gauge hit over 100 degrees Celsius and triggered the red warning light. Mark pulled off immediately, let the engine cool, and avoided a potential head gasket failure. Now he monitors all seven parameters every time he drives.

Micro Comparison

Individual analog gauges can clutter your dashboard and require separate wiring for each unit. This digital set combines seven functions into a single 52mm format, reducing installation time and dash space. The blue LED display and red warning lights provide faster readability than traditional needle gauges, especially in low-light conditions. Each gauge includes its own sensor and hardware, so you do not need to buy extra parts.

Specifications

- Gauge diameter: 52mm / 2 inch

• Case material: ABS plastic with aluminum rim

• Display: Blue LED digital readout

• Power: 12V DC, max 0.3A

• Boost gauge range: -14 to 29 PSI / -1 to 2 BAR

• Water temp gauge range: 40 to 150 degrees Celsius

• Oil temp gauge range: 40 to 150 degrees Celsius

• Oil pressure gauge range: 0 to 150 PSI

• Voltmeter range: 8 to 18V

• Tachometer range: 0 to 9999 RPM

• Air-fuel ratio gauge range: 0 to 120 PSI

• Sensor thread: NPT 1/8 inch

• Warning light thresholds: Boost gauge red warning, water temp over 100 degrees Celsius, oil temp over 100 degrees Celsius, tachometer over 5000 RPM, voltmeter under 10V

• Fitment: 12V 4/6/8 cylinder gasoline vehicles

Package Includes

- 1 x Boost PSI gauge with sensor, PVC hose, T-fitting, air filter

• 1 x Boost BAR gauge with sensor, PVC hose, T-fitting

• 1 x Water temperature gauge with sensor, screw knob, cable

• 1 x Oil temperature gauge with sensor, screw knob, cable

• 1 x Oil pressure gauge with sensor, screw knob, cable

• 1 x Voltmeter with installation instruction

• 1 x Tachometer with English manual, screw knob, cable

• 1 x Air-fuel ratio gauge with mounting bracket, mounting screws kit, English manual

Why You Will Love It

You get seven essential gauges in one purchase, saving money and installation time compared to buying each meter separately. The blue LED display looks clean and modern on any dashboard. With red warning lights for critical thresholds, you can drive with confidence knowing your engine is under constant watch.

Questions and Answers

Question: Do these gauges work on diesel engines?

Answer: These gauges are designed for 12V gasoline vehicles with 4, 6, or 8 cylinders. They may not be compatible with diesel engine systems.

Question: Can I install these gauges myself?

Answer: Yes, each gauge comes with an English installation manual, sensors, wiring, and mounting hardware. Basic wiring knowledge is helpful.

Question: What size opening do I need for the gauges?

Answer: Each gauge has a 52mm diameter, which is a standard 2 inch gauge size. They fit most gauge pods and dash openings.

Question: Do the gauges come with sensors?

Answer: Yes, every gauge includes its own sensor. The boost, water temp, oil temp, and oil pressure gauges all come with the appropriate NPT 1/8 inch sensors.

Question: Will the red warning light turn off after the condition is corrected?

Answer: Yes, the red warning light activates when the reading exceeds the preset threshold. Once the value returns to normal, the light turns off.

Question: What is the voltmeter warning point?

Answer: The voltmeter triggers a warning at 10V.

Question: Can I use these gauges on a motorcycle?

Answer: They are designed for 12V car systems. Motorcycle compatibility depends on your bike's electrical system and available space.

Question: Are the readings in PSI or BAR?

Answer: The boost gauge is available in both PSI and BAR versions. The oil pressure gauge reads in PSI. Temperature gauges read in degrees Celsius.