Specification

Gas flow
Full scale flow rate
-100 - 250
-100 - 250 slm
Typical accuracy
±2% m.v.
±2% m.v.
Calibration
Air and O₂
Air and O₂
Sensor output
Flow and T
Flow and T
Maximum operating pressure
1.07
1.07 bar
Fluidic connector ports
Medical cone (22 mm)
Medical cone (22 mm)
Generic
Supply voltage
4.75 - 5.5
4.75 - 5.5 V
Max. supply current
10000
10000 uA
Interfaces
I²C
I²C
Size (LxWxH)
73 x 26 x 26.2
73 x 26 x 26.2 mm³

Technical downloads

Name Type Date File Size
Datasheet SFM3200

05/2022

File

277.2 KB

Datasheet 05/2022 PDF 277.2 KB
CRC checksum

01/2020

File

174.3 KB

Application note 01/2020 PDF 174.3 KB
SFM3xxx I²C Functional Description

05/2022

File

306.1 KB

Application note 05/2022 PDF 306.1 KB
Sample code SFM3000

10/2021

File

261.6 KB

Software 10/2021 ZIP 261.6 KB
STEP file SFM3200

10/2021

File

3.4 MB

CAD 10/2021 STEP 3.4 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-SFM3200
Gas flow sensors evaluation kit SFM3200 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.