Humidity Sensors
Humidity and moisture sensors — relative humidity (SHT31, SHT40, DHT22, etc.), soil moisture sensors, and combined temperature/humidity breakouts.
STCC4 + SHT41 CO2, Temperature & Humidity Sensor
SKU: AF-6478 | Brand: Adafruit
This compact breakout combines the STCC4 CO2 sensor with a Sensirion SHT41 temperature and humidity sensor for convenient indoor air monitoring. The STCC4 measures true CO2 using a thermal conductivity method rather t...
Delivered by Tue 30 Jun
Indoor Air Quality Combo Sensor - SCD41/SEN55 (Qwiic)
SKU: SF-SEN-25200 | Brand: SparkFun
Build a detailed indoor air monitor with this Qwiic combo board, pairing Sensirion’s SCD41 CO2 sensor with the SEN55 environmental sensor node. Together they measure CO2, volatile organic compounds (VOCs), particulate...
Delivered by Fri 19 Jun
Qwiic Capacitive Soil Moisture Sensor
SKU: SF-SEN-30480 | Brand: SparkFun
This capacitive soil moisture breakout is designed for plant monitoring projects where exposed metal probes can corrode after time in the dirt. It measures moisture using a capacitive plate embedded in the board, mana...
Delivered by Fri 19 Jun
Gravity: STCC4 True Carbon Dioxide (CO2) Sensor (3-in-1 Air Quality Monitoring, 400 ~ 5000ppm)
SKU: DF-SEN0678 | Brand: DFRobot
This Gravity air quality module uses Sensirion’s STCC4 gas sensing chip to directly measure carbon dioxide with the thermal conductivity measurement principle. It is designed for compact, cost-effective indoor monitor...
Delivered by Fri 19 Jun