SFA30 Formaldehyde Sensor Module
Formaldehyde Sensing Made Easy
The SFA30 is Sensirion’s new digital formaldehyde sensor designed for easy integration into air purifiers, demand-controlled ventilation systems, or indoor air quality monitors.
Based on Sensirion’s electrochemical technology, the SFA30 offers excellent formaldehyde sensing performance with a uniquely low cross-sensitivity to other 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. Relying on Sensirion’s experience in environmental sensing and a patented electrochemical cell with anti-dry technology, the SFA30 offers excellent long-term stability and 6 years service lifetime
SFA30 Sensor Features
| SFA30 Sensor Applications
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SFA30 Sensor Specifications
| Name | Sensor Output | Formaldehyde accuracy | Supply Voltage Range | Interface | Size (LxWxH) mm |
| SFA30 | Formaldehyde concentration in ppb, Relative humidity in %, Temperature in °C | ±20 ppb or ±20% of measured value, whichever is larger | 3.3 V or 5.0 V (3.15 V - 5.5 V) | I²C / UART | 46 x 24 x 5.5 |
SFA30 Sensor Technology and Benefits
| Technology | Benefits |
| Patented electrochemical cell with anti-dry technology | Excellent long-term stability and 6 years service lifetime |
| Integrated SHT humidity and temperature sensor | On-board RH and T compensation, additional RH and T output |
| Uniquely low cross sensitivity to other VOCs | Reliable Formaldehyde measurements in real life conditions |
| Fully factory calibrated module | Easy to use and life-time calibrated |
Start Evaluating The SFA30 Today
The SEK-SFA30 evaluation kit has been designed for easy evaluation of Sensirion’s SFA30 formaldehyde sensor. In addition to the SFA30 sensor module, the SEK-SFA30 comes with a UART-USB cable for a plug-and-play connection to a PC and evaluation with Sensirion’s easy-to-use SEK-ControlCenter viewer software. For connecting the sensor to prototyping platforms such as Arduino or RaspberryPi, a 7-pin jumper wire cable is provided.
