Lascar Electronics EL-USB-2 Humidity, Temperature and Dew Point USB Data Logger

Compact temperature/humidity logger with built-in lithium battery for recording 16382 values of each temperature and humidity. The saved measurement values can be read out via USB port and graphically displayed with the accompanying software, or exported to other software applications for further processing. The dew point is displayed in the software.

Price: £ 91.99 from Conrad Electronic