Sensirion SFA30 Formaldehyde Sensor Module

Sensirion SFA30 Formaldehyde Sensor Module is a digital sensor designed for easy integration into air purifiers, demand-controlled ventilation systems, or indoor air quality monitors. SFA30 Formaldehyde Sensor is based on Sensirion’s electrochemical technology and offers excellent formaldehyde sensing performance with a uniquely low cross-sensitivity to other volatile organic compounds (VOCs). The sensor module’s on-board SHT sensor provides accurate humidity and temperature readings and enables a fully temperature/humidity compensated and factory calibrated formaldehyde concentration output in ppb. Selectable digital UART and I²C interface options, a standard electrical connector, and versatile mounting options make the integration easy.

The Sensirion SFA30 Formaldehyde Sensor Module offers an accuracy of ±20ppb or ±20% of the measured value, whichever is larger. The SFA30 offers a 0ppb to 1000ppb measurement range, excellent long-term stability, and a 6-year service lifetime. In addition, the SFA30 series is compliant with the WELL Building Standard™.

Features

Low cross-sensitivity to ethanol
Long-term stability and six years’ service lifetime
Patented electrochemical cell with anti-dry technology

I²C/UART interface with lifetime-calibrated output
Fully temperature and humidity compensated via Sensirion RHT sensor

Applications

Real-time reading of HCHO gas concentration in parts per billion
Air conditioners and air exchangers

Air purifiers
Indoor air quality monitors

Specifications

Accuracy of ±20ppb or ±20% of measured value, whichever is larger
I²C / UART interface
1.0mA (average) current consumption

0ppb to 1000ppb measurement range
Formaldehyde concentration in ppb, RH, T sensor output
<2 min response time
<20ppb limit of detection

Well Compliant Sensor

Chart - Sensirion SFA30 Formaldehyde Sensor Module

Videos

Resources

Sensirion Press Release
Design-in Guide

Handling Instructions
REACH and RoHS Declaration