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Back to catalog
Available from 18 May 2022

SLF3S-4000B

  • All products
  • •Liquid flow sensors
  • •SLF3x

Liquid flow sensing on a new level: flow rates up to 600 ml/min

With the new SLF3S-4000B high-flow sensor, Sensirion is moving into a new measurement dimension and now covers an extended measurement range from nanoliters to liters per minute. With the same look and feel as the existing SLF3x flow sensor family, the SLF3S-4000B offers several advantages. Users can continue to use existing cables or software for readout without customization, thus eliminating reprogramming processes. The complete liquid flow sensor portfolio benefits users who want to source their sensor technology from one specialist in automation solutions and fluid systems.

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Specification

Liquid flow
Full scale flow rate (H2O)600ml/min600ml/min
Accuracy (H2O)5%5%
Repeatability (H2O)0.5%0.5%
Full scale flow rate (IPA)600ml/min600ml/min

Downloads

Datasheet SLF3S-4000B
  • 11/2022•
  • PDF•
  • 1.0 MB
DatasheetDownload Datasheet SLF3S-4000B11/2022Download Datasheet SLF3S-4000BPDFDownload Datasheet SLF3S-4000B1.0 MBDownload Datasheet SLF3S-4000B
Auto heater management in dispensing applications SLF3x
  • 10/2022•
  • PDF•
  • 414.8 KB
Application noteDownload Auto heater management in dispensing applications SLF3x10/2022Download Auto heater management in dispensing applications SLF3xPDFDownload Auto heater management in dispensing applications SLF3x414.8 KBDownload Auto heater management in dispensing applications SLF3x
Auto heater management SLF3x
  • 10/2022•
  • XLSX•
  • 31.0 KB
Application noteDownload Auto heater management SLF3x10/2022Download Auto heater management SLF3xXLSXDownload Auto heater management SLF3x31.0 KBDownload Auto heater management SLF3x
Chemical resistance
  • 07/2020•
  • PDF•
  • 134.7 KB
Application noteDownload Chemical resistance07/2020Download Chemical resistancePDFDownload Chemical resistance134.7 KBDownload Chemical resistance
I2C address change SLF3x
  • 04/2024•
  • PDF•
  • 190.0 KB
Application noteDownload I2C address change SLF3x04/2024Download I2C address change SLF3xPDFDownload I2C address change SLF3x190.0 KBDownload I2C address change SLF3x
Sensor fluidic ports and tubing connections
  • 01/2024•
  • PDF•
  • 531.4 KB
Application noteDownload Sensor fluidic ports and tubing connections01/2024Download Sensor fluidic ports and tubing connectionsPDFDownload Sensor fluidic ports and tubing connections531.4 KBDownload Sensor fluidic ports and tubing connections
STEP file SLF3S-4000B
  • 05/2022•
  • STEP•
  • 3.4 MB
Drawings/CADDownload STEP file SLF3S-4000B05/2022Download STEP file SLF3S-4000BSTEPDownload STEP file SLF3S-4000B3.4 MBDownload STEP file SLF3S-4000B
Engineering Guidelines of the SLF3x Series
  • 01/2024•
  • PDF•
  • 340.6 KB
Application noteDownload Engineering Guidelines of the SLF3x Series01/2024Download Engineering Guidelines of the SLF3x SeriesPDFDownload Engineering Guidelines of the SLF3x Series340.6 KBDownload Engineering Guidelines of the SLF3x Series
Formation, prevention and removal of biofilms
  • 07/2020•
  • PDF•
  • 294.8 KB
Application noteDownload Formation, prevention and removal of biofilms07/2020Download Formation, prevention and removal of biofilmsPDFDownload Formation, prevention and removal of biofilms294.8 KBDownload Formation, prevention and removal of biofilms
Operating guidelines for liquid flow meter kits (SLF3x and LD20)
  • 06/2019•
  • PDF•
  • 552.3 KB
Application noteDownload Operating guidelines for liquid flow meter kits (SLF3x and LD20)06/2019Download Operating guidelines for liquid flow meter kits (SLF3x and LD20)PDFDownload Operating guidelines for liquid flow meter kits (SLF3x and LD20)552.3 KBDownload Operating guidelines for liquid flow meter kits (SLF3x and LD20)
Selection guide liquid flow sensors
  • 08/2020•
  • PDF•
  • 288.0 KB
Application noteDownload Selection guide liquid flow sensors08/2020Download Selection guide liquid flow sensorsPDFDownload Selection guide liquid flow sensors288.0 KBDownload Selection guide liquid flow sensors
Arduino driver liquid flow
  • Link•
SoftwareDownload Arduino driver liquid flowDownload Arduino driver liquid flowLinkDownload Arduino driver liquid flowDownload Arduino driver liquid flow
STEP file SLF3x-0600D
  • 06/2026•
  • STEP•
  • 5.4 MB
Drawings/CADDownload STEP file SLF3x-0600D06/2026Download STEP file SLF3x-0600DSTEPDownload STEP file SLF3x-0600D5.4 MBDownload STEP file SLF3x-0600D
STEP file SLF3x-1300D
  • 06/2026•
  • STEP•
  • 5.5 MB
Drawings/CADDownload STEP file SLF3x-1300D06/2026Download STEP file SLF3x-1300DSTEPDownload STEP file SLF3x-1300D5.5 MBDownload STEP file SLF3x-1300D
STEP File SLF3x Clamp
  • 05/2023•
  • STEP•
  • 2.3 MB
Drawings/CADDownload STEP File SLF3x Clamp05/2023Download STEP File SLF3x ClampSTEPDownload STEP File SLF3x Clamp2.3 MBDownload STEP File SLF3x Clamp
Calibration certification SLF3x
  • 11/2022•
  • PDF•
  • 154.2 KB
CertificateDownload Calibration certification SLF3x11/2022Download Calibration certification SLF3xPDFDownload Calibration certification SLF3x154.2 KBDownload Calibration certification SLF3x
REACH and RoHS declaration Liquid Flow Meters
  • 04/2026•
  • PDF•
  • 102.7 KB
CertificateDownload REACH and RoHS declaration Liquid Flow Meters04/2026Download REACH and RoHS declaration Liquid Flow MetersPDFDownload REACH and RoHS declaration Liquid Flow Meters102.7 KBDownload REACH and RoHS declaration Liquid Flow Meters
REACH and RoHS declaration SLF
  • 04/2026•
  • PDF•
  • 102.7 KB
CertificateDownload REACH and RoHS declaration SLF04/2026Download REACH and RoHS declaration SLFPDFDownload REACH and RoHS declaration SLF102.7 KBDownload REACH and RoHS declaration SLF
Accuracy (IPA)
10
%
10
%
Repeatability (IPA)0.5%0.5%
Maximum operating pressure3bar3bar
Fluidic connector portsBarbed fittingsBarbed fittings
Generic
Supply voltage3.2 - 3.8V3.2 - 3.8V
Max. supply current6mA6mA
InterfacesI²C, RS485I²C, RS485
Size (LxWxH)48 x 15.5 x 8.6mm48 x 15.5 x 8.6mm

Sensor evaluation

Buy the following products to evaluate this sensor

NameDescriptionSeriesCategory
EK-SLF3S-4000BLiquid flow evaluation kit SLF3S-4000BSLF3xLiquid flow sensors

EK-SLF3S-4000B

Liquid flow evaluation kit SLF3S-4000B

SLF3x

Liquid 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.

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