The new Freetronics Humidity and Temperature Sensor Module is very handy for environmental monitoring, combining both temperature and humidity readings in a single unit.
Readings update every two seconds, with +/-0.5C and 2-5% accuracy. Perfect for logging data in your house, office, or server room, or even for building your own thermostat to control a heating or cooling system.
Connecting the sensor takes just one data pin on your Arduino, and we've provided a handy tutorial to get you started: see our Humidity and Temperature Sensor Module Quickstart Guide for details.
