A sensor used to measure the temperature of gases in the exhaust system of automobiles. It is typically installed in exhaust manifolds, catalytic converters, or other critical locations in the exhaust system. The sensor outputs electrical signals based on temperature changes, which can be read in real time by the car's engine control unit (ECU) to help regulate the engine's operating state and emissions control.

A device used to measure the amount of oil in the crankcase, oil is essential for the correct operation of the engine, as it lubricates the moving parts and helps dissipate heat. Lack of oil can lead to engine overheating and serious damage, as mechanical parts may no longer be properly lubricated. If the fuel level is too low, the sensor sends a signal to the instrument cluster to warn the driver. This makes it possible to take action before damage occurs.

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