Winsen FR03 Micro Flow Sensor - MEMS Thermal, 0.2-0.5 SLM, 0.5-4.5V Output
The Winsen FR03 is a MEMS thermal mass flow sensor designed for precise gas flow measurement in low-flow applications, compatible with 5-14V DC systems and providing a linear 0.5-4.5V analog output signal for easy integration with microcontrollers, PLCs, and data acquisition systems.
Features
- MEMS thermal sensing principle for direct mass flow measurement.
- Selectable full-scale ranges: 0.2, 0.3, 0.4, or 0.5 Standard Liters per Minute (SLM).
- Low-pressure loss design with DN3 (3mm) drift diameter.
- Linear 0.5V to 4.5V analog output, customizable for specific applications.
- Low power consumption, operating on 5-14V DC with ≤10mA current draw.
Out of stock
The Winsen FR03 Micro Flow Sensor is an upgraded successor to the F1013 series, utilizing a MEMS thermal sensing element to monitor pipeline gas flow. This principle measures the heat transfer caused by the moving gas medium, providing a direct reading of mass flow rate independent of pressure and temperature variations under standard conditions. The sensor features a compact, modular design with a low-pressure drop flow path.
Engineered for stability, the FR03 delivers high repeatability and an accuracy of ±(2 + 0.5% of Full Scale). It is calibrated for air under standard conditions by default, with options for custom gas calibration. For optimal accuracy, installation requires a straight inlet pipe section of at least 5x the nominal diameter. The sensor is intended for use with dry, clean, non-corrosive, and purified gases to prevent contamination of the sensitive MEMS element.
Additional Information
| Weight | 0.013 kg |
|---|---|
| Dimensions | 7 × 6 × 2 cm |















