Peace, mercy, and blessings of God be upon you. For sale: a sport gauge that fits all cars via the OBD port. The gauge is very useful and has many features: 1. It has many themes. 2. It displays speed and RPM. 3. Speed alert: you can set it to alert you at any speed. 4. Temperature alert: if it exceeds normal levels, and this is very, very useful because sometimes the temperature rises and you don't notice or the car doesn't alert you until it's too late. This one alerts you as soon as it rises above normal. 5. The device diagnoses malfunctions and clears the check engine light. 6. It gives you car readings such as oxygen percentage and many other readings, especially for the engine. 7. It displays the engine temperature, transmission temperature, and radiator water temperature. 8. Clock. 9. It displays the alternator charging percentage.