Coming soon

OPT-1

Digital oil pressure and temperature gauge. One Bosch sensor, one engine tap.

In pictures

The OPT-1 in detail

Prototypes, screens, vehicle installation and circuit board.

Coming soon

One sensor. One tap. Two readings.

The OPT-1 displays your engine's oil pressure and oil temperature. It came out of a simple observation: everywhere else, watching those two values means two sensors, two engine taps, two looms — and two places to leak.

The OPT-1 uses a combined Bosch PST-F1 sensor that measures both in the same place: a single fitting on the engine. Designed, developed and assembled in France.

Measurement

Oil pressure 0–10 bar, temperature −40 to 150 °C
16-bit converter and the official Bosch table
Noise filtering

Engine speed

The OPT-1 also reads engine speed, and that is what makes its alarm intelligent. It connects to the coil, an injector or your ECU's tacho output.

Setup takes seconds on screen: you enter your number of cylinders, and that's it. Engine speed is then displayed live.

Don't want to run that wire? The OPT-1 also works in pressure-only mode, without losing any of its other functions.

An alarm that follows engine speed

This is the function that changes everything. Instead of a fixed threshold that screams at idle or stays silent when it matters, the OPT-1 accepts a pressure × rpm curve with 2 to 8 points, interpolated automatically between points.

Smart arming: no false alarm on start-up or with a cold engine
Sensor fault detection and loss-of-rpm-signal detection
Audible alarm with adjustable volume

Display

Round 1.5" touchscreen
Four interfaces: Modern, Classic, Simple Light, Simple Dark
Brightness adjustable by touch
Switch between bar / PSI and °C / °F
Cold oil indicator below 60 °C
2-minute pressure graph with session min / max
Start-up logo

Built-in G-meter

Swipe left to open the G dial: a dot moves with acceleration, braking and cornering load, with a trail showing the movement and the session peak stored.

This is not a gimmick. A pressure drop that happens exactly as lateral G builds is oil surge — not a tired pump. In a log file the two look alike; with G recorded alongside pressure, you can tell them apart.

The same dial is available on the web dashboard. The housing's orientation is calibrated with a long press, however it is mounted in the car.

Session logging

One press starts recording: pressure, temperature, engine speed, alarm threshold and G forces, ten times per second, time-stamped.

Internal memory holds around 2.5 hours of continuous recording — easily several track sessions. When it fills up, the oldest session is deleted automatically, so recording never stalls.

Files download as a spreadsheet and open straight in Excel, Google Sheets or LibreOffice — no special software to install.

WiFi and web dashboard

The OPT-1 creates its own WiFi access point. From a phone or a computer you open a web dashboard to follow live data, edit the pressure/rpm curve, download your recordings and run firmware updates. No software to install. Every unit carries a unique identifier.

Reliability and electrical protection

A gauge that quits at the wrong moment is worthless. The OPT-1 includes a watchdog, a reboot log, memory monitoring, configuration validation and permanent storage of your settings.

On the electrical side: over-voltage protection (OVP), reverse-polarity protection, TVS diodes and EMC filtering. Seven test points on the board and a serial number stored twice.

Installation

12 V switched supply
Micro-Fit 3.0 connector
Pressure and temperature outputs to an ECU
A single engine tap
Plug & play: no setup required to get going

Who it's for

Built engines where oil pressure is no longer a variable you ignore
Track days
Turbo conversions, engine swaps, ITBs, high-output builds
Youngtimers instrumented properly

Where the project stands

The OPT-1 is currently in beta testing. The circuit board is designed in-house, the firmware is complete and working, and the first units are running on real vehicles. It will go on sale once this phase is finished.