{"title":"Adafruit SCD-30 - NDIR CO2 Temperature and Humidity Sensor - STEMMA QT / Qwiic","handle":"adafruit-scd-30-ndir-co2-temperature-and-humidity-sensor-stemma-qt-qwiic","url":"/products/adafruit-scd-30-ndir-co2-temperature-and-humidity-sensor-stemma-qt-qwiic","description":"The Adafruit SCD-30 is a true NDIR (Non-Dispersive Infrared) CO2 sensor that directly measures carbon dioxide concentration in ambient air, rather than estimating it from volatile organic compounds. With an integrated SHT31 temperature and humidity sensor, it provides comprehensive environmental data from a single module.\n\nData is read over I2C, making it compatible with virtually any microcontroller or single-board computer. Arduino and CircuitPython libraries are available for quick setup. The built-in voltage regulator and level shifting allow use with both 3.3 V and 5 V systems.\n\nKey Features\n\n\nTrue NDIR CO2 Sensing – Direct CO2 measurement, not VOC-based estimation\n\nMeasurement Range – 400 to 10,000 ppm CO2\n\nAccuracy – ±(30 ppm + 3%) with dual-channel detection for long-term stability\n\nIntegrated Temperature & Humidity – Built-in SHT31 sensor for compensation and standalone environmental readings\n\nI2C Interface – Address 0x61, with STEMMA QT / Qwiic connectors for solderless hookup\n\n3.3 V / 5 V Compatible – Onboard voltage regulator and level shifting\n\nFully Calibrated & Linearised – Ready to use out of the box\n\nLow Power – 19 mA at 1 measurement per 2 seconds\n\n\nIdeal For\n\nIndoor air quality monitoring and ventilation studies\nScientific experiments and environmental research\nSmart building and HVAC systems\nClassroom and office CO2 monitoring\n\n\nPackage Contents\n\n1× Adafruit SCD-30 NDIR CO2, Temperature & Humidity Sensor Breakout\n\n\n\nTip: STEMMA QT / Qwiic cable is not included. Use a compatible JST SH cable for solderless connection, or solder directly to the header pads.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":14404,"title":"Default Title","sku":"AF-4867","price":127.74,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":101,"option1":"Default Title"}]}