Adafruit STCC4 and SHT41 - CO2, Temperature & Humidity Sensor - STEMMA QT / Qwiic 12v fan Product Sensor style Standout Flame

Product Sensor style Standout Flame Sensor for Arduino light sensor with UART Current item Flame Sensor Analog light sensor with analog and digital output analog output

The longer leg is usually positive

1 × Teensy 4

and adds stronger USB host capability

Adafruit STCC4 and SHT41 - CO2, Temperature & Humidity Sensor - STEMMA QT / Qwiic 12v fan Product Sensor style Standout FlameAdafruit 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