Sensor de Combustible

CLS sensor series enjoy multi-innovation technologies. With capacitance as the sensitive element, CLS sensor series continuous detects the height of the fuel level with less than 1mm resolution. Sensor length can also be shorter to fit tanks with different heights. CLS sensor can replace the original fuel level sensor on vehicles and connects with oil gauge. With wide range of voltage input, it has no limitation to input voltage

Technical parameter:

  • Sensor length: 200~ 1500mm, any length available within this range
  • Resolution: ≤1mm
  • Wide range of power supply: DC10V ~ 32V/5V
  • Maximum operating current: < 15mA
  • Working temperature: -40 ~ +85℃
  • Material of the tubes: Aluminum ally
  • Application environment: diesel, biodiesel, gasoline, kerosene
    (Not applicable to conducting medium)
  • Protection rank: IP65


Mode of connection:

  • Red: VCC ( 10~32V ) Red: VCC ( 10~32V )
  • Black: GND Black: GND
  • Blue: Vout (0.5~4 .5V/0~3.3V/0~5V) Blue: sensor receiving line
  • RS485 Yellow: sensor sending line
  • Red: VCC ( 10~32V )
  • Black: GND
  • Blue: B
  • Yellow:



  • Calibrator must couple with the sensor, and it has 12V/ 23A battery inside.
  • Red light is the power light. If the light isn’t on when switch on, battery replacement is needed;
    Green light is the calibration light. Full/ Empty button is showed in above picture.
    Note: Calibration is necessary before using the sensor due to different fuel types.

Length adjustment and Calibrator:

  • 4.1 Adjustment of sensor length
  • Aluminum tube at the bottom can be shorter according to different requirements from customers.
    Steps are as follows:
  • 4.1.1 Customer specifies the sensor length according to the needs;
  • 4.1.2 Cut the unwanted part with steel saw;
  • 4.1.3 Get rid of the burrs and the debris at the cutting area with blade or a screwdriver to avoid short circuit.
  • 4.1.4 Take down the bottom plug unit, and reassemble in the sensor.


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