Formaldehyde gas sensor SFA30

ethanolelectrochemical

The SFA30 is a digital formaldehyde sensor designed for easy integration into air purifiers, demand-controlled ventilation systems, or indoor air quality monitors. Based on the electrochemical measurement principle, the SFA30 offers excellent performance with a uniquely low cross-sensitivity to other VOCs. The integrated humidity and temperature sensor provides accurate 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 our 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. On top of that, the SFA30 is compliant with the relevant healthy building standards RESET® and WELL Building Standard™. Specification Formaldehyde Accuracy - ±20 ppb or ±20% m.v. - - Sensor output - Formaldehyde concentration in ppb, RH, T - - Cross sensitivity to ethanol - < 0.5 - % - Limit of detection - 6 - years - Humidity Typ. relative humidity accuracy - 2.5 - %RH - Operating relative humidity range - 10 - 90 - %RH - Generic Supply voltage - 3.15 - 5.5 - V - Average supply current - 1000 - uA - Max. supply current - 5000 - uA - Interfaces - I²C,UART - - Size (LxWxH) - 46 x 24 x 5.5 - mm³ - Temperature Typ. temperature accuracy - 0.2 - °C - Operating temperature range - 0 - 40 - °C