Back to catalogSTC31FiltersProduct categoryCO₂ sensors2Humidity sensors0Temperature sensors0Refrigerant leakage sensors0O₂ sensors0NOx & VOC sensors0Formaldehyde sensors0Particulate matter sensors0Hydrogen sensors0Liquid flow sensors0Gas flow sensors0Differential pressure sensors0Mass flow controllers0Gas metering solutions0ClassSensor2Accessory0Development board0Evaluation kit0Reference design0Product statusNew1End of life1Upcoming0Active0Not recommended for new designs0Last time buy0InterfaceI²C2Sensibus0PWM0SDM0UART0RS2320RS4850Switch0Device net0IO link0ModBus0Analog voltage0Analog current0Show archived productsSimplify product viewNewCompare STC31-CCO₂ accuracy of ±(0.2 - 2.0 vol%) @0-100 vol%SensorCO₂ sensors