Specification

Gas flow
Full scale flow rate
-10 - 240
-10 - 240 slm
Typical accuracy
±2% m.v.
±2% m.v.
Calibration
Air, O₂ and mixtures thereof
Air, O₂ and mixtures thereof
Sensor output
Flow and T
Flow and T
Maximum operating pressure
1.3
1.3 bar
Fluidic connector ports
Medical cone (22 mm)
Medical cone (22 mm)
Generic
Supply voltage
2.7 - 5.5
2.7 - 5.5 V
Average supply current
3800
3800 uA
Max. supply current
5500
5500 uA
Interfaces
I²C
I²C
Size (LxWxH)
39 x 29 x 5
39 x 29 x 5 mm³

Technical downloads

Name Type Date File Size
Datasheet SFM3019

07/2021

File

1.4 MB

Datasheet 07/2021 PDF 1.4 MB
Sample code SFM3xxx

02/2022

Link

-

Software 02/2022 Link -
Sample code SFM3xxx 0.1.3

02/2022

Link

-

Software 02/2022 Link -
Sample code SFM3xxx sensorbridge

02/2022

Link

-

Software 02/2022 Link -
STEP file SFM3003, SFM3019, SFM3020

10/2021

File

3.7 MB

CAD 10/2021 STEP 3.7 MB
SEK-ControlCenter (all devices)

10/2021

Link

-

Viewer software 10/2021 Link -
Handling instructions SFM3xxx

01/2021

File

141.7 KB

Application note 01/2021 PDF 141.7 KB
Reference and flow conversions

09/2021

File

293.7 KB

Application note 09/2021 PDF 293.7 KB
Reference and flow conversions calculator

10/2021

File

30.3 KB

Application note 10/2021 XLSX 30.3 KB
Engineering guide SFM

01/2021

File

592.1 KB

User guide 01/2021 PDF 592.1 KB
Calibration certification gas flow sensors

01/2023

File

169.8 KB

Certificate 01/2023 PDF 169.8 KB
REACH and RoHS declaration SFM/SGM

02/2024

File

88.9 KB

Certificate 02/2024 PDF 88.9 KB
Mass flow controllers brochure chinese

02/2024

File

606.2 KB

Flyer 02/2024 PDF 606.2 KB
Overview of Sensirion gas flow meters

01/2024

File

1013.9 KB

Flyer 01/2024 PDF 1013.9 KB

Sensor evaluation

Buy the following products to evaluate this sensor

Name Description Series Category
SEK-SensorBridge
Connecting bridge with two sensor ports SEK-SensorBridge
SEK-SFM3019
Gas flow sensors evaluation kit SFM3019 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

Smart sensors for your application

Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.