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NRND

SFM3000-200

Versatile low pressure drop digital flow sensor, 200 slm

SFM3000 is a digital flow meter especially suitable for high-volume applications. The design of the flow channel results in very low pressure drop through the sensor element, making it highly suitable for medical ventilation and respiration applications. The SFM3000 bidirectionally measures the flow of air and other non-aggressive gases at rates up to 200slm with excellent accuracy and extremely high speed. It outputs a 14-bit digital signal at a 2kHz update rate. The signal is internally linearized and temperature compensated. Furthermore, the SFM3000 flow meter operates from a 5 Vdc supply voltage and features a digital 2-wire interface, making it easy to connect directly to a microcontroller. The outstanding performance of the SFM3000 sensor is based on Sensirion's patented CMOSens® Technology, which combines the sensor element, signal processing and digital calibration on a tiny microchip. The gas is measured by a thermal sensor element to provide an extended dynamic range and enhanced long-term stability compared to other flow measuring technologies. Thanks to this proven CMOSens® Technology, the flow meter is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.

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  • SFM3000-200

Successor product

NameDescriptionSeriesCategory
SFM3003-300-CEVersatile low pressure drop sensor, -150 slm to +300 slm, with capSFM3xxxGas flow sensors

SFM3003-300-CE

Versatile low pressure drop sensor, -150 slm to +300 slm, with cap

SFM3xxx

Gas flow sensors

Specification

Gas flow
Full scale flow rate200 - 200slm200 - 200slm
Typical accuracy±2.5% m.v.±2.5% m.v.
CalibrationAir and O₂Air and O₂
Sensor outputFlow and TFlow and T
Maximum operating pressure1.3bar1.3bar
Fluidic connector portsMedical cone (22 mm)Medical cone (22 mm)
Generic
Supply voltage4.75 - 5.5V4.75 - 5.5V
Average supply current3800uA3800uA
Max. supply current5500uA5500uA
InterfacesI²CI²C
Size (LxWxH)82 x 35 x 32mm

Downloads

Datasheet SFM3000
  • 07/2016•
  • PDF•
  • 541.3 KB
DatasheetDownload Datasheet SFM300007/2016Download Datasheet SFM3000PDFDownload Datasheet SFM3000541.3 KBDownload Datasheet SFM3000
CRC checksum
  • 01/2020•
  • PDF•
  • 174.3 KB
Application noteDownload CRC checksum01/2020Download CRC checksumPDFDownload CRC checksum174.3 KBDownload CRC checksum
SFM3x00 I²C Functional Description
  • 05/2022•
  • PDF•
  • 306.1 KB
Application noteDownload SFM3x00 I²C Functional Description05/2022Download SFM3x00 I²C Functional DescriptionPDFDownload SFM3x00 I²C Functional Description306.1 KBDownload SFM3x00 I²C Functional Description
Sample code SFM3000
  • ZIP•
  • 261.6 KB
SoftwareDownload Sample code SFM3000Download Sample code SFM3000ZIPDownload Sample code SFM3000261.6 KBDownload Sample code SFM3000
STEP file SFM3000
  • STEP•
  • 2.2 MB
Drawings/CADDownload STEP file SFM3000Download STEP file SFM3000STEPDownload STEP file SFM30002.2 MBDownload STEP file SFM3000
Product flyer medical applications SFM3000
  • PDF•
  • 183.1 KB
FlyerDownload Product flyer medical applications SFM3000Download Product flyer medical applications SFM3000PDFDownload Product flyer medical applications SFM3000183.1 KBDownload Product flyer medical applications SFM3000
Datasheet SFM3505-300/SFM3505-300-X
  • 10/2025•
  • PDF•
  • 634.4 KB
DatasheetDownload Datasheet SFM3505-300/SFM3505-300-X10/2025Download Datasheet SFM3505-300/SFM3505-300-XPDFDownload Datasheet SFM3505-300/SFM3505-300-X634.4 KBDownload Datasheet SFM3505-300/SFM3505-300-X
Handling instructions SFM3xxx
  • 01/2021•
  • PDF•
  • 141.7 KB
Application noteDownload Handling instructions SFM3xxx01/2021Download Handling instructions SFM3xxxPDFDownload Handling instructions SFM3xxx141.7 KBDownload Handling instructions SFM3xxx
Reference and flow conversions
  • 09/2021•
  • PDF•
  • 293.7 KB
Application noteDownload Reference and flow conversions09/2021Download Reference and flow conversionsPDFDownload Reference and flow conversions293.7 KBDownload Reference and flow conversions
Reference and flow conversions calculator
  • XLSX•
  • 30.3 KB
Application noteDownload Reference and flow conversions calculatorDownload Reference and flow conversions calculatorXLSXDownload Reference and flow conversions calculator30.3 KBDownload Reference and flow conversions calculator
Selection guide gas flow sensors
  • 12/2025•
  • PDF•
  • 563.3 KB
Application noteDownload Selection guide gas flow sensors12/2025Download Selection guide gas flow sensorsPDFDownload Selection guide gas flow sensors563.3 KBDownload Selection guide gas flow sensors
Engineering guide SFM
  • 01/2021•
  • PDF•
  • 592.1 KB
GuideDownload Engineering guide SFM01/2021Download Engineering guide SFMPDFDownload Engineering guide SFM592.1 KBDownload Engineering guide SFM
SEK-ControlCenter (all devices)
  • Link•
SoftwareDownload SEK-ControlCenter (all devices)Download SEK-ControlCenter (all devices)LinkDownload SEK-ControlCenter (all devices)Download SEK-ControlCenter (all devices)
Calibration certification gas flow sensors
  • 01/2023•
  • PDF•
  • 114.2 KB
CertificateDownload Calibration certification gas flow sensors01/2023Download Calibration certification gas flow sensorsPDFDownload Calibration certification gas flow sensors114.2 KBDownload Calibration certification gas flow sensors
REACH and RoHS declaration SFM/SGM
  • 04/2026•
  • PDF•
  • 104.6 KB
CertificateDownload REACH and RoHS declaration SFM/SGM04/2026Download REACH and RoHS declaration SFM/SGMPDFDownload REACH and RoHS declaration SFM/SGM104.6 KBDownload REACH and RoHS declaration SFM/SGM
Gas flow sensors brochure
  • 10/2025•
  • PDF•
  • 497.6 KB
FlyerDownload Gas flow sensors brochure10/2025Download Gas flow sensors brochurePDFDownload Gas flow sensors brochure497.6 KBDownload Gas flow sensors brochure
  • All products
  • •Gas flow sensors
  • •SFM3xxx

Sensor evaluation

Buy the following products to evaluate this sensor

NameDescriptionSeriesCategory
SEK-SensorBridgeConnecting bridge with two sensor portsSEK-SensorBridge
SEK-SFM3000Gas flow sensors evaluation kit SFM3000SEK-SFMxxxxGas flow sensors

SEK-SensorBridge

Connecting bridge with two sensor ports

SEK-SensorBridge

SEK-SFM3000

Gas flow sensors evaluation kit SFM3000

SEK-SFMxxxx

Gas flow sensors

Download the respective viewer software to start measuring

Go to download center

Start testing our sensors fast and easy with the evaluation kits

How to get started

Applications for this product

Mechanical ventilators

Precise and safe patient ventilation using ventilator flow sensors

Learn more

Anesthesia flow sensor

Unlock precise gas mixing at minimal flows with ultra-accurate anesthesia low flow sensors

Learn more
82 x 35 x 32
mm

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