Winsen FR03 Micro Flow Sensor


In stock

SKU: 1278790
  1. Model No: FR03
  2. Full Scale(SLM): 0.2/0.3/0.4/0.5
  3. Drift diameter: DN3
  4. Output Mode Linearity: 0.5V~4.5V(Customized)


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In stock

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1 Year Warranty
15 Days Warranty
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Brand: Winsen
Category: Water TDS, pH, Flow, Level and Pressure Sensor

FR03 flow sensor is an upgrading developed from F1013 . It adopts MEMS Thermal principle to monitor the flow of pipeline gas medium. This product adopts low pressure loss design and is widely used for all kinds of gas measurement.


The flow sensor of our company adopts standard condition and air calibration by default. If the user has special requirements, calibrate according to the customer’s requirements.


  1. The gas used must be purified to avoid dust, liquid and oil stain. If necessary, a filtering device can be installed in the gas circuit.
  2. The medium used must be dry and clean non-corrosive gas.
  3. The pressure of the medium used shall not exceed 1.2 times of the maximum working pressure of the product.
  4. In order to ensure the measurement accuracy of the sensor, it is recommended to install a straight pipe section at least 5 times the nominal diameter at the inlet of the sensor and at least 3 times the nominal diameter

For more info refer to Datasheet 

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  1. High sensitivity
  2. Very low pickup flow
  3. High Accuracy
  4. Low voltage loss
  5. Modular design
  6. High measurement repeatability
  7. Suitable for customization of various products

Package Includes: 

1 x Winsen FR03 Micro Flow Sensor

Model No


Full Scale(SLM)


Drift diameter


Output Mode Linearity


Output impedance


Working Voltage


Working Current






Working Temperature


Shipping Weight 0.013 kg
Shipping Dimensions 7 × 6 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China