SDP31

Digital differential pressure sensor (±500 Pa)

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Specification

Differential pressure
Pressure range
500 - 500
500 - 500 Pa
Accuracy
3
3 % m.v.
Zero point accuracy
0.1
0.1 Pa
Generic
Supply voltage
3 - 3.6
3 - 3.6 V
Average supply current
3800
3800 uA
Max. supply current
5500
5500 uA
Interfaces
I²C
I²C
Size (LxWxH)
8.5 x 5.5 x 5.15
8.5 x 5.5 x 5.15 mm³

Downloads

Name Type Date File Size
Datasheet SDP3x digital

11/2022

File

740.0 KB

Datasheet 11/2022 PDF 740.0 KB
SDP31/32/33 measurement without dedicated flow restrictor

08/2024

File

122.4 KB

Application note 08/2024 PDF 122.4 KB
Viewer software USB/RS485 (V. 2.91)

10/2021

File

1.7 MB

Software 10/2021 MSI 1.7 MB
Efficient Gas Flow Measurements in Bypass

05/2023

File

211.4 KB

Application note 05/2023 PDF 211.4 KB
Handling instructions SDP3x

05/2023

File

137.9 KB

Application note 05/2023 PDF 137.9 KB
SDP Engineering Guide

06/2024

File

1.0 MB

Guide 06/2024 PDF 1.0 MB
SDP Measurement Parameters

06/2024

File

381.1 KB

Guide 06/2024 PDF 381.1 KB
SDP Selection Guide

06/2024

File

318.0 KB

Guide 06/2024 PDF 318.0 KB
SDP Signal Compensation

06/2024

File

350.4 KB

Guide 06/2024 PDF 350.4 KB
Arduino I²C SDP library

10/2021

Link

-

Software 10/2021 Link -
Sample code SDP3x

10/2021

File

302.0 KB

Software 10/2021 ZIP 302.0 KB
STEP file SDP3x

10/2021

File

1014.5 KB

Drawings/CAD 10/2021 STEP 1014.5 KB
Calibration Certification SDP3x

04/2022

File

90.7 KB

Certificate 04/2022 PDF 90.7 KB
Differential pressure brochure chinese

06/2024

File

1.5 MB

Flyer 06/2024 PDF 1.5 MB
Differential pressure brochure english

05/2024

File

1.3 MB

Flyer 05/2024 PDF 1.3 MB
Differential pressure brochure japanese

06/2024

File

1.8 MB

Flyer 06/2024 PDF 1.8 MB
Product flyer consumer electronics SDP3x

04/2017

File

661.2 KB

Flyer 04/2017 PDF 661.2 KB
Product flyer medical SDP3x

04/2017

File

655.2 KB

Flyer 04/2017 PDF 655.2 KB
Product flyer vacuum cleaner SDP3x

06/2018

File

874.0 KB

Flyer 06/2018 PDF 874.0 KB

Sensor evaluation

Buy the following products to evaluate this sensor

Name Description Series Category
SEK-SDP31
Differential pressure evaluation kit SDP31 SEK-SDP Differential pressure
SEK-SensorBridge
Connecting bridge with two sensor ports SEK-SensorBridge

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

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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.