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 Thu 3 Sep
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 21 Aug
AgXRP DIY Pump & Soil Moisture Sensor Expansion Pack - Beta
SKU: SF-KIT-30715 | Brand: SparkFun
Add another controlled planting area to an existing AgXRP Starter Kit with this DIY expansion pack. It is designed to create a completely independent watering zone, so students can compare plant types, watering schedu...
Delivered by Fri 21 Aug
Qwiic Soil Moisture Sensor
SKU: SF-SEN-24409 | Brand: SparkFun
This compact breakout board measures moisture in soil and similar materials using two large exposed pads as conductivity probes. As the soil gets wetter, conductivity between the pads increases, resistance drops, and ...
Delivered by Fri 21 Aug
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...
Out of stock
STC31 CO2 Sensor (Qwiic)
SKU: SF-SEN-29260 | Brand: SparkFun
Measure high concentrations of carbon dioxide with a Qwiic breakout built around Sensirion’s STC31 sensor. It is designed for CO2 measurements up to 100% volume, using a thermal conductivity measurement principle and ...
Out of stock
Artemis Global Tracker Satellite GNSS Board
SKU: SF-WRL-18712 | Brand: SparkFun
Built for field deployments well beyond WiFi and mobile coverage, this compact tracker combines an Iridium 9603N Short Burst Data modem with the Arduino-compatible Artemis module. It can send and receive short satelli...
Out of stock