Formaldehyde sensors

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Formaldehyde is a common indoor pollutant found in wood-based furniture and floorings, paints, and cosmetics. It poses health risks already at extremely low concentrations as both a respiratory irritant and a carcinogenic chemical. Sensirion’s formaldehyde sensors deliver highly accurate and selective detection of formaldehyde in indoor environments. Designed for air-quality monitoring applications, each sensor accurately distinguishes harmful formaldehyde in the presence of other, typically harmless VOCs. With proven long-term reliability and compact integration, our formaldehyde sensors enable air-quality management across diverse applications, including smart home devices, HVAC systems, and air purification products. Discover how our formaldehyde sensors can enhance your air quality solutions.

Filters
  • Series

    • SEK-SensorBridge

      1

    • SEK-SFAxx

      1

    • SFA30

      1

    • SFA40

      1

    • ASP1400

      0

    • EK-F5x

      0

    • EK-LD20xx

      0

    • EK-LPG10

      0

    • EK-Px

      0

    • EK-SLF3x

      0

    • EK-SLx

      0

    • ESS

      0

    • LD20

      0

    • LG01

      0

    • LG16

      0

    • LPG10

      0

    • LS32-1500

      0

    • SCC1

      0

    • SCC30-DB

      0

    • SCD30

      0

    • SCD4x

      0

    • SCD4x Gadget

      0

    • SDP1xxx

      0

    • SDP3x

      0

    • SDP5xx

      0

    • SDP6xx

      0

    • SDP8xx

      0

    • SDPxxx cap

      0

    • SEK-SCDxx

      0

    • SEK-SDP

      0

    • SEK-SEN5x

      0

    • SEK-SEN6x

      0

    • SEK-SFMxxxx

      0

    • SEK-SHTxx

      0

    • SEK-SPSxx

      0

    • SEK-STC31

      0

    • SEK-STCC4

      0

    • SEK-STS4x

      0

    • SEK-SVMxx

      0

    • SEN5x

      0

    • SEN6x

      0

    • SENSEVAL-SCB4XV1

      0

    • SENSEVAL-SHT4XV1

      0

    • SFC3x00

      0

    • SFC4x00

      0

    • SFC5300

      0

    • SFC5400

      0

    • SFC5500

      0

    • SFC6000

      0

    • SFM3xxx

      0

    • SFM3xxx-AW/D

      0

    • SFM4xxx

      0

    • SFM5xxx

      0

    • SFM6000-OEM

      0

    • SFx filter cap

      0

    • SGD43S-M3-Sx

      0

    • SGM53xx

      0

    • SGM63xx

      0

    • SGM64xx

      0

    • SGP30

      0

    • SGP4x

      0

    • SGPC3

      0

    • SHT1x

      0

    • SHT2x

      0

    • SHT31 Smart Gadget

      0

    • SHT3x

      0

    • SHT43 DemoBoard

      0

    • SHT4x

      0

    • SHT4xA

      0

    • SHT4xI

      0

    • SHT4x Smart Gadget

      0

    • SHT7x

      0

    • SHT85

      0

    • SHTCx

      0

    • SHTWx

      0

    • SLD3P

      0

    • SLF3S

      0

    • SLF3x

      0

    • SLG

      0

    • SLI

      0

    • SLQ-QT105

      0

    • SLQ-QT500

      0

    • SLS-1500

      0

    • SPS30

      0

    • STC31

      0

    • STC42x

      0

    • STCC4

      0

    • STS2x

      0

    • STS3x

      0

    • STS4x

      0

    • STS4xA

      0

    • SVM30

      0
  • Class

    • Evaluation kit

      2

    • Sensor

      2

    • Accessory

      0

    • Development board

      0

    • Reference design

      0
  • Product status

    • Upcoming

      1

    • Active

      1

    • Not recommended for new designs

      2

    • New

      0

    • Last time buy

      0

    • Obsolete

      0
  • Interface

    • I²C

      2

    • UART

      1

    • Sensibus

      0

    • PWM

      0

    • SDM

      0

    • RS232

      0

    • RS485

      0

    • Switch

      0

    • Device net

      0

    • IO link

      0

    • ModBus

      0

    • Analog voltage

      0

    • Analog current

      0
SFA40
Upcoming

SFA40

Miniature, low power consumption formaldehyde sensor for indoor air quality applications

Size (LxWxH)
13 x 10 x 2.4 mm
Supply voltage
1.62 - 3.6 V
Average supply current
80 uA
Measurement range
0 - 1000 ppb
Accuracy
±20 ppb or ±20% m.v.
Cross sensitivity to ethanol
< 0.3 %
Lifetime
-
Interfaces
I²C
  • Sensor
  • Formaldehyde sensors
SEN69C
Upcoming

SEN69C

Sensing platform for PM, RH/T, VOC, NOx, CO2 and HCHO measurements

Mass concentration precision
±10 %
Mass concentration range
0 - 1000 μg/m³
Particle size range
PM1.0, PM2.5, PM4 and PM10
Lifetime
> 10 years
Supply voltage
3.15 - 3.45 V
Average supply current
80000 uA
Interfaces
I²C
  • Sensor
  • Particulate matter sensors
SEN68
Upcoming

SEN68

Sensing platform for PM, RH/T, VOC, NOx and HCHO measurements

Mass concentration precision
±10 %
Mass concentration range
0 - 1000 μg/m³
Particle size range
PM1.0, PM2.5, PM4 and PM10
Lifetime
> 10 years
Supply voltage
3.15 - 3.45 V
Average supply current
75000 uA
Interfaces
I²C
  • Sensor
  • Particulate matter sensors
SEK-SensorBridge

SEK-SensorBridge

Connecting bridge with two sensor ports

- Connect two sensors to one SEK-SensorBridge and evaluate simultaneously - 1.2 V to 5.5 V selectable supply - Power supply up to 250 mA at 5 V Includes: - 1x SEK-SensorBridge - 1x USB connector cable
  • Evaluation kit
SFA30
NRND

SFA30

Formaldehyde sensor with ultra low cross-sensitivity to ethanol

Size (LxWxH)
46 x 24 x 5.5 mm
Supply voltage
3.15 - 5.5 V
Average supply current
1000 uA
Measurement range
0 - 1000 ppb
Accuracy
±20 ppb or ±20% m.v.
Cross sensitivity to ethanol
< 0.5 %
Lifetime
> 6 years
Interfaces
I²C, UART
  • Sensor
  • Formaldehyde sensors
SEK-SFA30
NRND

SEK-SFA30

Formaldehyde evaluation kit SFA30

  • Reliable formaldehyde measurements at low concentrations of ppb
  • Low cross-sensitivity to other volatile organic compounds
  • Excellent long-term stability and over 6 years service lifetime
  • On-board RH and T compensation, as well as RH and T output 

 

Includes: 

  • 1x SFA30 module
  • 1x UART to USB adapter cable (2 meter length)
  • 1x jumper wire set

 

Download our free article on formaldehyde here.

  • Evaluation kit
  • Formaldehyde sensors