The ITHX-SD-5-5D from Omega is a temperature and humidity data logger with online Ethernet readings. The iTHX-SD transmitter lets user record and monitor online temperature, relative humidity and dew point over an Ethernet network or the internet with no special software except a Web browser. The iTHX-SD serves active web pages to display real time readings, display charts of temperature and humidity, or log data in standard data formats for use in a spreadsheet or data acquisition program such as excel or visual basic. Model comes with removable 2GB SD flash memory card that can store up to seven years of readings taken at ten second intervals. The iTHX-SD is great for monitoring temperature + humidity in applications such as clean rooms, computer rooms, HVAC systems, pharmaceutical and food processing and storage, hospitals, laboratories, semiconductor fabs, electronic assembly, warehousing, museums, manufacturing, greenhouses, farm animal shelters and many more.