Flow Sensors – Mouser South Africa

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SFM Medical Digital Flow Meters

Sensirion SFM Medical Digital Flow Meters are designed to measure the flow rate of air, oxygen, and other non-aggressive gases with excellent accuracy. These flow meters offer a low-pressure drop with a small dead space. Sensirion SFM Medical Digital Flow Meters deliver ultra-fast update times with high sensitivity. These flow meters offer a bidirectional flow range of -100 standard liters per minute (SLM) to ±250SLM. They feature medical cones for pneumatic connection to standard breathing circuits and a mechanical interface for easy and reliable electrical reconnections. These meters are based on CMOSens® technology, which combines a thermal sensor element, signal processing, and digital calibration on a single microchip for fast signal processing. SFM meters are specifically designed for medical applications such as respiratory, ventilation, anesthesia, and metabolic instruments.

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Part #

Flow Sensors Digital Mass Flow Meter for CO2, 0-20 slm, Legris

SFM4100-CO2 Legris
Sensirion
1: $190.43
28In Stock

Mfr. Part No.
SFM4100-CO2 Legris

Mouser Part No
403-SFM4100CO2LEGRIS

Sensirion

Flow Sensors Digital Mass Flow Meter for CO2, 0-20 slm, Legris

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Datasheet

28In Stock

$190.43

$178.01

$173.25

$167.84

$165.75

Min.: 1
Mult.: 1

Gas Flow Meter

Carbon Dioxide

20 L/min

3 %

Bidirectional

3.5 V to 9 V

Stainless Steel

Flow Sensors Sensor device

SFM4100-Air-N2-Legris
Sensirion
1: $190.41
60In Stock

Mfr. Part No.
SFM4100-Air-N2-Legris

Mouser Part No
403-SFM4100AIR

Sensirion

Flow Sensors Sensor device

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Datasheet

60In Stock

$190.41

$178.01

$173.21

$167.84

$165.75

Min.: 1
Mult.: 1

Mass Flow Meter

Air, Non-Aggressive Gases

20 slm

3 %

Bidirectional

5 V to 9 V

6.25 mm

Polyamide (PA)

Flow Sensors Digital Mass Flow Meter for O2, 0-20 slm, Legris

SFM4100-O2 Legris
Sensirion
1: $190.39
16In Stock

Mfr. Part No.
SFM4100-O2 Legris

Mouser Part No
403-SFM4100-O2LEGRIS

Sensirion

Flow Sensors Digital Mass Flow Meter for O2, 0-20 slm, Legris

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Datasheet

16In Stock

$190.39

$177.99

$173.36

$171.93

$165.75

Min.: 1
Mult.: 1

Gas Flow Meter

Oxygen

20 L/min

3 %

Bidirectional

3.5 V to 9 V

Stainless Steel

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 10 slm - 0.01 slm.

SFM5500-10slm
Sensirion
1: $1,041.14
2In Stock

Mfr. Part No.
SFM5500-10slm

Mouser Part No
403-SFM5500-10SLM

Sensirion

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 10 slm - 0.01 slm.

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Datasheet

2In Stock

$1,041.14

$1,019.76

Min.: 1
Mult.: 1

Mass Flow Meter

Flow Meter

Gases

10 slm

0.8 %

Bidirectional

15 V to 26.4 V

Aluminum

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 2 slm - 0.002 slm.

SFM5500-2slm
Sensirion
1: $1,041.25
3In Stock

Mfr. Part No.
SFM5500-2slm

Mouser Part No
403-SFM5500-2SLM

Sensirion

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 2 slm - 0.002 slm.

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Datasheet

3In Stock

$1,041.25

$1,019.76

Min.: 1
Mult.: 1

Mass Flow Meter

Flow Meter

Gases

2 slm

0.8 %

Bidirectional

15 V to 26.4 V

Aluminum

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 50 sccm - 0.05 sccm.

SFM5500-50sccm
Sensirion
1: $1,041.47
2In Stock
7Expected 2026/03/18

Mfr. Part No.
SFM5500-50sccm

Mouser Part No
403-SFM5500-50SCCM

Sensirion

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 50 sccm - 0.05 sccm.

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Datasheet

2In Stock

7Expected 2026/03/18

$1,041.47

$1,019.76

Min.: 1
Mult.: 1

Mass Flow Meter

Flow Meter

Gases

50 slm

0.8 %

Bidirectional

15 V to 26.4 V

Aluminum

Flow Sensors

SFM6000D-5SLM
Sensirion
1: $217.71
10In Stock

Mfr. Part No.
SFM6000D-5SLM

Mouser Part No
403-SFM6000D-5SLM

Sensirion

Flow Sensors

Learn More

Datasheet

10In Stock

$217.71

$203.79

$198.59

$192.12

$191.56

Min.: 1
Mult.: 1

Mass Flow Meter

Gas

Air, AR, CO2, N2, N2O, O2

2 slm to 50 slm

2 %

24 V

6 mm

Stainless Steel

Flow Sensors

SFM6000D-20SLM
Sensirion
1: $217.80
3In Stock
5Expected 2026/04/15

Mfr. Part No.
SFM6000D-20SLM

Mouser Part No
403-SFM6000D-20SLM

Sensirion

Flow Sensors

Learn More

Datasheet

3In Stock

5Expected 2026/04/15

$217.80

$203.86

$198.66

$192.45

$191.56

Min.: 1
Mult.: 1

Mass Flow Meter

Gas

Air, AR, CO2, N2, N2O, O2

2 slm to 50 slm

2 %

24 V

6 mm

Stainless Steel

Flow Sensors

SFM6000D-50SLM
Sensirion
1: $217.71
4In Stock

Mfr. Part No.
SFM6000D-50SLM

Mouser Part No
403-SFM6000D-50SLM

Sensirion

Flow Sensors

Learn More

Datasheet

4In Stock

$217.71

$203.79

$198.59

$192.12

$191.56

Min.: 1
Mult.: 1

Mass Flow Meter

Gas

Air, AR, CO2, N2, N2O, O2

2 slm to 50 slm

2 %

24 V

6 mm

Stainless Steel

Flow Sensors Digital (Mass) Flow Meter with range of -150slm to +300slm

SFM3003-300-CE
Sensirion
1: $119.49
32In Stock

Mfr. Part No.
SFM3003-300-CE

Mouser Part No
403-SFM3003-300-CE

Sensirion

Flow Sensors Digital (Mass) Flow Meter with range of -150slm to +300slm

Learn More

Datasheet

32In Stock

$119.49

$111.19

$102.62

$100.55

$100.12

Min.: 1
Mult.: 1

Digital Mass Flow Meter

Flow Meter

Air, Oxygen

-150 slm to 300 slm

2.5 %

Bidirectional

3.3 V

19.8 mm

Polyphenylene Ether (PPE)

Flow Sensors Digital (Mass) Flow Meter with range of -30slm to +300slm

SFM3003-300-CL
Sensirion
1: $119.47
25In Stock

Mfr. Part No.
SFM3003-300-CL

Mouser Part No
403-SFM3003-300-CL

Sensirion

Flow Sensors Digital (Mass) Flow Meter with range of -30slm to +300slm

Learn More

Datasheet

25In Stock

$119.47

$111.17

$107.89

$102.62

$100.12

Min.: 1
Mult.: 1

Digital Mass Flow Meter

Flow Meter

Air, Oxygen

- 30 slm to 300 slm

2.5 %

Bidirectional

3.3 V

19.8 mm

Polyphenylene Ether (PPE)

Flow Sensors Robust Digital (Mass) Flow Meter with range of -30slm to +300slm

SFM3013-300-CL
Sensirion
1: $137.45
40In Stock

Mfr. Part No.
SFM3013-300-CL

Mouser Part No
403-SFM3013-300-CL

Sensirion

Flow Sensors Robust Digital (Mass) Flow Meter with range of -30slm to +300slm

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Datasheet

40In Stock

$137.45

$128.08

$127.48

$118.42

$116.56

Min.: 1
Mult.: 1

Digital Mass Flow Meter

Flow Meter

Air, Oxygen

- 30 slm to 300 slm

3.5 %

Bidirectional

3.3 V

19.8 mm

Polyphenylene Ether (PPE)

Flow Sensors Digital Airflow sensor

SFM3019
Sensirion
1: $149.39
20In Stock
20Expected 2026/05/20

Mfr. Part No.
SFM3019

Mouser Part No
403-SFM3019

Sensirion

Flow Sensors Digital Airflow sensor

Learn More

Datasheet

Product Comments

20In Stock

20Expected 2026/05/20

$149.39

$139.34

$139.30

$128.95

$127.55

Min.: 1
Mult.: 1

Digital Flow Meter

Digital Mass Flow Meter

Air, Oxygen

-10 slm to 240 slm

3 %

Unidirectional

2.7 V to 5.5 V

Polyphenylene Ether (PPE)

Flow Sensors Digital (Mass) Flow Meter with range of -10slm to +240slm

SFM3119-240-CL
Sensirion
1: $118.77
39In Stock
30Expected 2026/05/01

Mfr. Part No.
SFM3119-240-CL

Mouser Part No
403-SFM3119-240-CL

Sensirion

Flow Sensors Digital (Mass) Flow Meter with range of -10slm to +240slm

Learn More

Datasheet

39In Stock

30Expected 2026/05/01

$118.77

$110.50

$107.41

$103.04

View

Min.: 1
Mult.: 1

Low Pressure Drop Digital Flow Meter

Digital Flow Meter

Air, Oxygen, Non-Aggressive Gases

- 10 slm to 240 slm

2.5 %

Bidirectional

3.3 V

19 mm

Polyphenylene Ether (PPE)

Flow Sensors Digital Airflow sensor

SFM3200-250
Sensirion
1: $156.11
31In Stock

Mfr. Part No.
SFM3200-250

Mouser Part No
403-SFM3200-250

Sensirion

Flow Sensors Digital Airflow sensor

Learn More

Datasheet

31In Stock

$156.11

$145.39

$141.21

$139.15

$133.95

Min.: 1
Mult.: 1

Air Flow Sensor

Digital Flow Meter

Air, Oxygen, Non-Aggressive Gases

- 100 slm to 250 slm

7 %

Bidirectional

5 V

26 mm

Plastic

Flow Sensors -100 slm to +250 slm (bi-directional)Digital Flow Meter designed for Medical Applications - Autoclavable & cleanable Version

SFM3200-AW
Sensirion
1: $263.58
25In Stock

Mfr. Part No.
SFM3200-AW

Mouser Part No
403-SFM3200-AW

Sensirion

Flow Sensors -100 slm to +250 slm (bi-directional)Digital Flow Meter designed for Medical Applications - Autoclavable & cleanable Version

Learn More

Datasheet

25In Stock

$263.58

$222.38

$206.67

$191.81

$187.01

Min.: 1
Mult.: 1

Air Flow Sensor

Air, Oxygen, Non-Aggressive Gases

- 100 slm to 250 slm

7 %

Bidirectional

5 V

Plastic

Flow Sensors 250 slm, Bidirectional Digital Flow Meter designed for Medical Applications - Autoclavable & cleanable Version

SFM3300-AW
Sensirion
1: $212.98
19In Stock
30Expected 2026/05/06

Mfr. Part No.
SFM3300-AW

Mouser Part No
403-SFM3300-AW

Sensirion

Flow Sensors 250 slm, Bidirectional Digital Flow Meter designed for Medical Applications - Autoclavable & cleanable Version

Learn More

Datasheet

19In Stock

30Expected 2026/05/06

$212.98

$199.33

$194.23

$187.01

Min.: 1
Mult.: 1

Air Flow Sensor

Air, Oxygen, Non-Aggressive Gases

+/- 250 slm

7 %

Bidirectional

5 V

Plastic

Flow Sensors 250 slm, Bidirectional Digital Flow Meter designed for Medical Applications - Disposable Single Use Version

SFM3300-D
Sensirion
1: $40.11
248In Stock
210Expected 2026/03/25

Mfr. Part No.
SFM3300-D

Mouser Part No
403-SFM3300-D

Sensirion

Flow Sensors 250 slm, Bidirectional Digital Flow Meter designed for Medical Applications - Disposable Single Use Version

Learn More

Datasheet

248In Stock

210Expected 2026/03/25

$40.11

$36.84

$35.61

$34.02

View

Min.: 1
Mult.: 1

Air Flow Sensor

Air, Oxygen, Non-Aggressive Gases

+/- 250 slm

7 %

Bidirectional

5 V

Plastic

Flow Sensors Singe use Airflow sensor

SFM3400-33-D
Sensirion
1: $40.15
173In Stock
180Expected 2026/03/18

Mfr. Part No.
SFM3400-33-D

Mouser Part No
403-SFM3400-33-D

Sensirion

Flow Sensors Singe use Airflow sensor

Learn More

Datasheet

173In Stock

180Expected 2026/03/18

$40.15

$36.93

$35.73

$34.29

View

Min.: 1
Mult.: 1

Flow Meter

Digital Flow Meter

Air, Oxygen, Non-Aggressive Gases

- 33 slm to 33 slm

10 %

Bidirectional

5 V

15.6 mm, 17.8 mm

Silicon

Flow Sensors 33slm (bidirectional) Digital Flow Meter for Neonatal/Pediatric Medical Applications - Autoclavable & cleanable Version

SFM3400-AW
Sensirion
1: $212.98
19In Stock

Mfr. Part No.
SFM3400-AW

Mouser Part No
403-SFM3400-AW

Sensirion

Flow Sensors 33slm (bidirectional) Digital Flow Meter for Neonatal/Pediatric Medical Applications - Autoclavable & cleanable Version

Learn More

Datasheet

19In Stock

$212.98

$199.33

$194.23

$187.01

Min.: 1
Mult.: 1

Air Flow Sensor

Air, Oxygen, Non-Aggressive Gases

+/- 33 slm

3 %

Bidirectional

5 V

Plastic

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 0.5 slm - 0.0005 slm.

SFM5500-0.5slm
Sensirion
1: $1,041.47
4Expected 2026/04/15

Mfr. Part No.
SFM5500-0.5slm

Mouser Part No
403-SFM5500-0.5SLM

Sensirion

Flow Sensors Digital Multigas Mass Flow Meter with exchangeable connectors (6 mm Legris included). Measurement range: 0.5 slm - 0.0005 slm.

Learn More

Datasheet

4Expected 2026/04/15

$1,041.47

$1,019.76

Min.: 1
Mult.: 1

Mass Flow Meter

Flow Meter

Gases

0.5 slm

0.8 %

Bidirectional

15 V to 26.4 V

Aluminum

Flow Sensors Digital Mass Flow Meter -30slm to +300slm, robust with Heliox calibration

SFM3013-300-CLM
Sensirion
1: $192.43
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SFM3013-300-CLM

Mouser Part No
403-SFM3013-300-CLM

Sensirion

Flow Sensors Digital Mass Flow Meter -30slm to +300slm, robust with Heliox calibration

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$192.43

$179.90

$179.10

$167.67

Min.: 1
Mult.: 1

Digital Mass Flow Meter

Flow Meter

Air, Oxygen

- 30 slm to 300 slm

3.5 %

Bidirectional

3.3 V

19.8 mm

Polyphenylene Ether (PPE)

Flow Sensors Mass Flow Meter Sensor for Respiratory Applications

SFM3100-240-VC
Sensirion
30: $160.16
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SFM3100-240-VC

Mouser Part No
403-SFM3100-240-VC

Sensirion

Flow Sensors Mass Flow Meter Sensor for Respiratory Applications

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$160.16

Min.: 30
Mult.: 30

Mass Air Flow Sensor

Air, Oxygen, Non-Aggressive Gases

- 24 slm to 240 slm

2.5 %

2.4 V

Bidirectional

5 V

14 mm

Flow Sensors Digital Mass Flow Meter for Air, N2 0-20 slm, Downmount

SFM4100-Air, N2 Downmount
Sensirion
40: $165.75
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SFM4100-Air, N2 Downmount

Mouser Part No
403-SFM4100-AIRN2DM

Sensirion

Flow Sensors Digital Mass Flow Meter for Air, N2 0-20 slm, Downmount

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Datasheet

Non-Stocked Lead-Time 12 Weeks

$165.75

Min.: 40
Mult.: 40

Gas Flow Meter

Air, Non-Aggressive Gases

20 L/min

3 %

Bidirectional

3.5 V to 9 V

Stainless Steel

Flow Sensors Digital Mass Flow Meter for Ar, 0-20 slm, Downmount

SFM4100-AR Downmount
Sensirion
40: $165.75
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SFM4100-AR Downmount

Mouser Part No
403-SFM4100-ARDM

Sensirion

Flow Sensors Digital Mass Flow Meter for Ar, 0-20 slm, Downmount

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$165.75

Min.: 40
Mult.: 40

SFM Medical Digital Flow Meters

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