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See our audio amplifier modules
Are headers included
1 × Teensy 4
and adds stronger USB host capability
Adafruit STCC4 and SHT41 - CO2, Temperature & Humidity Sensor - STEMMA QT / Qwiic 12v fan See our audio amplifier modulesAdafruit STCC4 + SHT41 breakout CO2, temperature, and humidity in one small board. Good for room air monitors, smart home builds, classroom sensors, and Raspberry Pi or Arduino logging. The STCC4 measures real CO2 via thermal conductivity, not a VOC estimate. Built for normal indoor air Adafruit notes it isn't for scientific CO2 testing or unusual gas environments. STEMMA QT Qwiic connectors plus header pins for breadboard use. Specs Product ID 6478
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