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.

Features  

• Accuracy: ±20 ppb or ±20% of measured value, whichever is larger
• Interface: I²C / UART
• Supply voltage range: 3.3 V or 5.0 V
• Current consumption: 1.0 mA (average)
• Measurement range: 0 to 1,000 ppb
• Sensor output: Formaldehyde concentration in ppb, RH, T
• Response time: <2 min
• Limit of detection: <20 ppb

Applications

• Air Purifiers
• Air Conditioners
• Indoor Air Quality Monitors