SFA40Back to catalogFiltersProduct categoryFormaldehyde sensors1Humidity sensors0Temperature sensors0NOx & VOC sensors0CO₂ sensors0Particulate matter sensors0Liquid flow sensors0Differential pressure sensors0Gas flow sensors0Mass flow controllers0Gas metering solutions0Refrigerants sensors0ClassSensor1Accessory0Development board0Evaluation kit0Reference design0Product statusUpcoming1New0Active0Not recommended for new designs0Last time buy0Obsolete0InterfaceI²C1Sensibus0PWM0SDM0UART0RS2320RS4850Switch0Device net0IO link0ModBus0Analog voltage0Analog current0UpcomingCompare SFA40Miniature, low power consumption formaldehyde sensor for indoor air quality applicationsSize (LxWxH)13 x 10 x 2.4 mmSupply voltage1.62 - 3.6 VAverage supply current80 uAMeasurement range0 - 1000 ppbAccuracy±20 ppb or ±20% m.v.Cross sensitivity to ethanol< 0.3 %Lifetime-InterfacesI²CSensorFormaldehyde sensors