Product catalogFilters1Product category1Humidity86Temperature14VOCs/NOx13Formaldehyde4CO₂15Particulate matter14Liquid flow56Differential pressure40Gas flow sensors57Mass flow controllers16Gas metering solutions2Refrigerants2SeriesSEK-SensorBridge1SEK-SFAxx1SFA301SFA401ASP14000EK-F5x0EK-LD20xx0EK-LPG100EK-Px0EK-SLF3x0EK-SLx0ESS0LD200LG010LG160LPG100LS32-15000SCC10SCC30-DB0SCD300SCD4x0SCD4x Gadget0SDP1xxx0SDP3x0SDP5xx0SDP6xx0SDP8xx0SDPxxx cap0SEK-SCDxx0SEK-SDP0SEK-SEN5x0SEK-SEN6x0SEK-SFMxxxx0SEK-SHTxx0SEK-SPSxx0SEK-STC310SEK-STCC40SEK-STS4x0SEK-SVMxx0SEN5x0SEN6x0SENSEVAL-SCB4XV10SENSEVAL-SHT4XV10SFC3x000SFC4x000SFC53000SFC54000SFC55000SFC60000SFM3xxx0SFM3xxx-AW/D0SFM4xxx0SFM5xxx0SFM6000-OEM0SFx filter cap0SGD43S-M3-Sx0SGM63xx0SGM64xx0SGP300SGP4x0SGPC30SHT1x0SHT2x0SHT31 Smart Gadget0SHT3x0SHT43 DemoBoard0SHT4x0SHT4xA0SHT4xI0SHT4x Smart Gadget0SHT7x0SHT850SHTCx0SHTWx0SLD3P0SLF3S0SLF3x0SLG0SLI0SLQ-QT1050SLQ-QT5000SLS-15000SPS300STC310STC42x0STCC40STS2x0STS3x0STS4x0STS4xA0SVM300ClassEvaluation kit2Sensor2Accessory0Development board0Reference design0Product statusUpcoming1Active3New0Not recommended for new designs0Last time buy0Obsolete0InterfaceI²C2UART1Sensibus0PWM0SDM0RS2320RS4850Switch0Device net0IO link0ModBus0Analog voltage0Analog current0Change viewInputFormaldehydeClear all4 ResultsUpcomingCompare 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-InterfacesI²C SensorFormaldehydeCompare SFA30Formaldehyde sensor with ultra low cross-sensitivity to ethanolSize (LxWxH)46 x 24 x 5.5 mmSupply voltage3.15 - 5.5 VAverage supply current1000 uAMeasurement range0 - 1000 ppbAccuracy±20 ppb or ±20% m.v. Cross sensitivity to ethanol< 0.5 %Lifetime> 6 yearsInterfacesI²C, UART SensorFormaldehydeCompare SEK-SFA30Formaldehyde evaluation kit SFA30Reliable formaldehyde measurements at low concentrations of ppb Low cross-sensitivity to other volatile organic compounds Excellent long-term stability and over 6 years service lifetime On-board RH and T compensation, as well as RH and T output Includes: 1x SFA30 module 1x UART to USB adapter cable (2 meter length) 1x jumper wire set Download our free article on formaldehyde here.Evaluation kitFormaldehydeCompare SEK-SensorBridgeConnecting bridge with two sensor ports- Connect two sensors to one SEK-SensorBridge and evaluate simultaneously - 1.2 V to 5.5 V selectable supply - Power supply up to 250 mA at 5 V Includes: - 1x SEK-SensorBridge - 1x USB connector cableEvaluation kitHomeProducts