52 mm Oil Temperature and Pressure Gauge — two measurements, one single dial
This 52 mm gauge combines your engine's oil pressure gauge and oil temperature gauge on a single display. Two pieces of information that most production cars no longer display, even though they signal a failure long before the red light comes on. Supplied with its pressure sensor and oil temperature probe, it installs on 12 V as well as 24 V.
Why monitor oil pressure and temperature
- Two measurements on a single instrument: temperature in °C at the top, pressure in bar at the bottom, with only one cutout required in the dashboard.
- LED digital display: instant reading day or night, with no needle to interpret.
- Four combinations: red LED or green LED, black bezel or chrome bezel, to match the original dashboard lighting.
- Standard 52 mm format: compatible with all gauge mounts on the market, single pod, triple pod, or air vent.
- Probes included: pressure sensor with 1/8 NPT thread and screw-in temperature probe, with no additional purchases required.
- 12 to 24 V power supply: car, utility vehicle, modified 4x4, or boat, the same instrument is suitable.
Engine oil gauge: when pressure speaks before the light
The original oil pressure warning light is an all-or-nothing switch: it lights up when the pressure is already dangerously low, often too late. A graduated oil pressure gauge, however, shows the trend: a gradual drop when hot at idle, pressure that takes longer to build up at startup, a value that collapses under sustained use. The same logic applies to oil temperature: it rises much higher than water temperature on a stressed engine, and it is what determines the maintenance of the lubricating film. On an older vehicle, a modified engine, or a car used on the track, these two values are worth all diagnostics.
Technical specifications
Dial diameter: 52 mm, front bezel of 56 mm, depth of 54 mm behind the plate. Supply voltage 12 to 24 V. Dual digital display: temperature in degrees Celsius, pressure in bars. Oil pressure sensor 89 mm high and 44 mm in diameter, 10 mm 1/8 NPT thread, two screw terminals. Brass temperature probe with two wires. Five-wire color-coded wiring harness, remote adjustment button, and mounting cup supplied. Compatible depending on installation, to be checked before installation.
Installation and adjustment
Allow for a half-day. The pressure sensor screws onto the original pressure switch, if necessary via a tee fitting to retain the dashboard warning light. The temperature probe is mounted on a drain plug adapter or on a sandwich oil filter holder. Inside the cabin, connect the red wire to +12 V after ignition, the black wire to ground, the white to the lighting, then the two signal wires to the probes. Tighten the connections to the specified torque, start up, and check for leaks after ten minutes of operation.
Frequently asked questions
What oil pressure is normal?
Count on about 1 bar at idle when hot and 3 to 5 bars under load on a healthy engine. The exact values depend on the manufacturer.
At what oil temperature should you worry?
Beyond 120 °C during prolonged use, the lubricating film degrades. Oil exceeding this value on the road indicates a real problem.
Can you keep the original warning light?
Yes, with a tee fitting screwed into the pressure switch location. The warning light and the gauge then work together.
Is the gauge suitable for a boat?
Yes, the power supply accepts 12 and 24 V. Simply protect the connections from salt moisture.
Do you need to drill the dashboard?
Not necessarily: a 52 mm gauge mount on a door pillar or on an air vent avoids any cutout.
Does the display turn off when the engine is off?
Yes, the instrument is powered after ignition and consumes nothing when the vehicle is stopped.
No more discovering an oil failure by the red light: install this 52 mm gauge and read pressure and temperature in real time, probes included.
Type: 2-in-1 digital oil pressure and temperature gauge
Diameter: 52 mm (56 mm bezel, 54 mm depth)
Power supply: 12 to 24 V
Units: degrees Celsius and bars
Display: red or green LED, black or chrome bezel
Pressure sensor: 89 x 44 mm, 10 mm 1/8 NPT thread
Temperature probe: Brass screw-in, 2 wires
Supplied with: gauge, 2 probes, 5-wire harness, mounting cup, manual
Installation: Standard 52 mm mount, after-ignition connection
Compatibility: universal depending on installation, to be checked before installation
Condition: 100% New
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