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Supmico Oil Temp Gauge Review: Clear oil temperature monitoring for 12V cars

Supmico Universal 52mm Oil Temp Gauge Kit, 7 Color LED Light, Dual Display Indicator, Fits All 12V Car
4.6
[Wide Temperature Range]  Measures 40–140°C for precise oil temperature monitoring.
[Dual Display Readout]  Digital numbers plus dial pointer for clear, quick readings day or night.
[Adjustable 7-Color Backlight]  Seven selectable colors with button control for bright nighttime visibility.
[52mm Universal Fitment]  Fits all 12V cars with 52mm gauge holders; includes installation manual.
[Reliable Accurate Performance]  Stable, high-reliability sensor with max 0.3A current for consistent accuracy.
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An automotive gauge for monitoring engine oil temperature, designed to give clear numeric and dial readings at a glance. Night-time colour customisation keeps cabin checks stress-free and readable for drivers and home mechanics. Is Supmico Oil Temp Gauge the sensible upgrade for routine engine monitoring?

⚡ At a Glance
  • Temperature Range: Measures from 40 to 140 degrees Celsius with both digital numbers and a dial pointer for easy reading
  • Best for: Drivers and home mechanics who need visible, reliable oil temperature readings
  • Not ideal for: Vehicles without a 52mm gauge mount or non-12V electrical systems

Dual readouts combine a dial pointer and digital numbers to show oil temperature between 40°C and 140°C. Seven-colour LED backlight is adjustable for clear visibility at night and fits standard 52mm dash holders on 12V cars.


Legible night-time display - with seven-colour LED backlight

Seven backlight colours are listed (white, red, blue, light blue, purple, green, yellow) and selectable using the unit's button. Bright LED illumination keeps both digital numbers and the pointer visible in darkness.

Selectable colours reduce glare and help match dash lighting, making night-time oil temperature checks quick and comfortable.

Clear, cross-checkable readings - thanks to dual digital numbers and dial pointer

Digital numbers present an exact temperature while a dial pointer gives an analogue reference, covering a 40–140°C measurement range. Descriptions note stable characteristics and high reliability for consistent readings.

Rapid assessment of engine temperature becomes straightforward, helping spot overheating or cooling issues early during drives.

Straightforward installation for most cars - with 52mm fitment and 12V compatibility

The gauge measures 2 inches (52mm) in diameter and is specified for DC 10–15V (professional 12V) systems, with a maximum current draw of 0.3A. The kit includes an installation manual to guide fitting into compatible gauge holders.

Fits into standard 52mm dash mounts on most 12V cars, allowing owners with basic wiring skills to add oil temperature monitoring.

✨ The 4 Key Reasons for Supmico Oil Temp Gauge
  1. Dual display - Analogue pointer plus digital readout for rapid confirmation of temperature
  2. Seven-colour backlight - Choose illumination to reduce glare and match dash lighting
  3. Low current draw - Maximum 0.3A keeps electrical load minimal on 12V systems
  4. Professional voltage range - Accepts DC 10–15V for steady performance across car electricals
📋 Technical Details at a Glance
  • Display: Digital numbers and dial pointer
  • Diameter: 2" / 52mm
  • Temperature Range: 40–140°C
  • Power / Voltage: DC (10-15V), 12V professional
  • Current: MAX 0.3A
❓ Frequently Asked Questions

Q: What temperature range does the gauge measure?

A: The gauge measures oil temperature from 40°C to 140°C, shown via digital numbers and a dial pointer.

Q: Will the gauge fit my car?

A: The unit fits any 12V car that accepts a 2 inch / 52mm gauge holder, and the kit includes an installation manual.

Q: How do I change the backlight colour?

A: A built-in button cycles through the seven available backlight colours so the display can be adjusted for preference or reduced glare.

🏆 Our Verdict

The Supmico Oil Temp Gauge is ideal for drivers and home mechanics who want clear, dependable oil temperature monitoring. Seven-colour illumination paired with dual digital and dial readouts makes night-time checks easy and quick. Simple 52mm fitment, low current draw and robust design point to solid long-term value for routine engine monitoring.