Sensirion SFM3300-250-D Medical Digital Mass Flow Meter

Sensirion SFM3300-250-D Medical Digital Mass Flow Meter

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1 - 29 units £12.00 each plus VAT
30+ units £10.00 each plus VAT

- Flow range +/- 250 slm, bi-directional
- Small dead space < 10 ml
- Single Use / Disposable
- Very fast update time 0.5 ms

The SFM3300 series is Sensirion’s digital flow meter series designed for medical applications. It measures the flow rate of air, oxygen and other non-aggressive gases with superb accuracy. The special design of the flow channel results in a very small dead space.

The SFM3300-D is disposable / single-use and is extremely well suited for proximal flow measurements in medical ventilation and other respiratory applications.

The SFM3300 series has been designed with the use by medical professionals in mind. It features medical cones for pneumatic connection to standard breathing circuits and a mechanical interface for easy and reliable electrical connection. The sensor element, signal processing and digital calibration are on a single microchip assuring very fast signal processing time, best-in-class accuracy and superior robustness to rough handling and adverse conditions.

The well-proven and patented CMOSens® sensor technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost sensitive OEM applications.


- Proximal Flow Measurement

- Expiratory Flow Measurement

- For Ventilation and Anaesthesia

- Respiratory Measurements

- Metabolic Measurements

Sensor chip

The SFM3300 series flow meter features a fifth-generation silicone sensor chip. In addition to a thermal mass flow sensor element, the chip contains an amplifier, A/D converter, EEPROM memory, digital signal processing circuitry, and interface. Due to seamless integration of signal acquisition and processing on the single silicon die significant performance and cost benefits are achieved.

For further specification information please see datasheet below.

Click here for link to Cross Reference

Click here for datasheet.