Relative humidity and temperature probe
Pico Technology

The HumidiProbe is a self-contained humidity and temperature measuring data logger. Simply position the HumidiProbe near the source you want to measure, plug the cable into the USB port on your PC, and you're ready to measure humidity and temperature.

Monitoring temperature and humidity is very important: temperature and humidity play an important part in health, comfort and productivity. Extreme temperatures can also cause electronic equipment to age faster and mechanical equipment to breakdown. If humidity is too high it can lead to corrosion of equipment, mould growth -- even printers jamming; if the humidity is too low it can lead to problems with static electricity and dehydration problems with everything from wine making to wood storage

The HumidiProbe's compact, all-in-one design allows it to be used in various locations and in a wide range of applications. Up to 4 HumidiProbes can be connected to one PC allowing you to accurately monitor the temperature and humidity in multiple locations at once, and at a low cost.