SEN55

Environmental sensor node for PM, RH/T, VOC, NOx measurements

Specification

Particulate matter
Mass concentration precision
±10
±10 %
Mass concentration range
0 - 1000
0 - 1000 μg/m³
Lifetime
> 10
> 10 years
Particle size range
PM1.0, PM2.5, PM4 and PM10
PM1.0, PM2.5, PM4 and PM10
Humidity
Typ. relative humidity accuracy
4.5
4.5 %RH
Operating relative humidity range
0 - 90
0 - 90 %RH
Response time (τ63%)
20
20 s
VOC
Sensor output
0-500 VOC Index
0-500 VOC Index
Measurement range
0 - 1000
0 - 1000 ppm
Response time (τ63%)
< 10
< 10 s
Device-to-device var.
±15
±15 % m.v.
Limit of detection
< 0.05 ppm of ethanol equivalents or < 10 % of concentration setpoint, whichever is larger
< 0.05 ppm of ethanol equivalents or < 10 % of concentration setpoint, whichever is larger
Switch-on time
1
1 h
On-chip humidity compensation
Yes
Yes
Generic
Supply voltage
4.5
4.5 V
Average supply current
63000
63000 uA
Max. supply current
110000
110000 uA
Interfaces
I²C
I²C
Size (LxWxH)
52.8 x 43.6 x 22.3
52.8 x 43.6 x 22.3 mm³
Temperature
Typ. temperature accuracy
0.45
0.45 °C
Operating temperature range
-10 - 50
-10 - 50 °C
Response time (τ63%)
< 60
< 60 s

Technical downloads

Name Type Date File Size
Datasheet SEN5x

01/2022

File

1.3 MB

Datasheet 01/2022 PDF 1.3 MB
Compliance of Sensirion’s VOC Sensors with RESET and WELL

04/2023

File

748.3 KB

Application note 04/2023 PDF 748.3 KB
How can I integrate Sensirion’s VOC and NOx sensors into my air purifier?

04/2022

File

249.8 KB

Application note 04/2022 PDF 249.8 KB
How to read RH/T, VOC, and NOx raw signals

03/2023

File

72.2 KB

Application note 03/2023 PDF 72.2 KB
Is it possible to map the output of a MOX sensor to a norm?

04/2022

File

258.0 KB

Application note 04/2022 PDF 258.0 KB
Sensor specification statement Particulate Matter Sensors

03/2020

File

444.4 KB

Application note 03/2020 PDF 444.4 KB
What are oxidizing gases?

04/2022

File

214.8 KB

Application note 04/2022 PDF 214.8 KB
What are reducing gases?

04/2022

File

332.0 KB

Application note 04/2022 PDF 332.0 KB
What is a metal oxide (MOX) sensor?

04/2022

File

288.2 KB

Application note 04/2022 PDF 288.2 KB
What is Sensirion’s NOx Index?

04/2022

File

341.2 KB

Application note 04/2022 PDF 341.2 KB
What is Sensirion’s VOC Index?

04/2022

File

300.4 KB

Application note 04/2022 PDF 300.4 KB
Engineering guidelines SEN5x

01/2022

File

398.4 KB

User guide 01/2022 PDF 398.4 KB
Handling instructions SEN5x

01/2022

File

112.4 KB

User guide 01/2022 PDF 112.4 KB
Mechanical design and assembly guidelines SEN5x

01/2022

File

791.7 KB

User guide 01/2022 PDF 791.7 KB
Mechanical design-in example SEN5x

01/2022

File

198.5 KB

User guide 01/2022 PDF 198.5 KB
Temperature acceleration (STAR Engine) and compensation instructions SEN5x

01/2022

File

280.6 KB

User guide 01/2022 PDF 280.6 KB
Arduino snippets SEN5x

08/2023

Link

-

Software 08/2023 Link -
STEP file SEN5x

01/2022

File

9.4 MB

CAD 01/2022 STEP 9.4 MB
STEP file SEN5x mechanical design-in example

01/2022

File

206.2 KB

CAD 01/2022 STEP 206.2 KB
SEN5x product flyer

03/2022

File

361.0 KB

Flyer 03/2022 PDF 361.0 KB
SEN5x product flyer japanese

03/2023

File

1.3 MB

Flyer 03/2023 PDF 1.3 MB
How can air quality at home be improved?

04/2022

File

260.1 KB

Application note 04/2022 PDF 260.1 KB
How can I make my air purifier smart/efficient?

04/2022

File

215.4 KB

Application note 04/2022 PDF 215.4 KB
Read Mass and Number Concentrations

11/2022

File

175.7 KB

Application note 11/2022 PDF 175.7 KB
Reduced Power Operation SEN5x

08/2022

File

318.0 KB

Application note 08/2022 PDF 318.0 KB
Arduino driver SEN5x

01/2022

Link

-

Software 01/2022 Link -
Embedded driver SEN5x

01/2022

Link

-

Software 01/2022 Link -
Raspberry Pi driver SEN5x

01/2022

Link

-

Software 01/2022 Link -
Raspberry Pi snippets SEN5x

08/2023

Link

-

Software 08/2023 Link -
REACH and RoHS declaration SPS30, SEN4x, SEN5x

02/2024

File

85.5 KB

Certificate 02/2024 PDF 85.5 KB
Indoor air quality brochure

10/2021

Link

7.7 MB

Flyer 10/2021 Link 7.7 MB

Sensor evaluation

Buy the following products to evaluate this sensor

Name Description Series Category
SEK-SEN5x
Evaluation kit SEN5x series SEK-SEN5x Particulate matter

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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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.