Fuel level sensor

A fuel level sensor is a device used to measure the amount of fuel within a container, most commonly a vehicle's fuel tank. The measurement is then typically displayed to an operator via a fuel gauge. These sensors are used in automotive, aviation, and industrial applications to provide operators with fuel level information.

Fuel level sensors are produced and utilized in two distinct market segments. Original Equipment Manufacturer (OEM) sensors are installed in vehicles during production by automotive manufacturers and are a standard component of modern passenger and commercial vehicles.[1] In contrast, aftermarket fuel level sensors are designed to be installed after a vehicle's purchase, typically as part of a fleet digitalization process. These sensors are often installed with a telematic control unit as part of a fuel management system for commercial fleets to help prevent fuel theft and track consumption.[2]

How it works: core technologies

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While the goal is the same, fuel level sensors operate using several different technologies. The choice of technology often depends on the required accuracy, the type of fuel, and the cost.

Float-type (potentiometer)

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Capacitive

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Ultrasonic

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Applications

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Automotive and transportation

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Industrial and bulk storage

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See also

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References

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  1. ^ "Global Automotive Fuel Level Sensor Market Report". Reanin. June 2024. Retrieved September 29, 2025.
  2. ^ "Global Fuel Sensor Market Research Report". DataIntelo. July 2024. Retrieved September 29, 2025.