Newport Electronics' iTHX-SD Transmitter
iTHX-SD transmitter lets users view virtual charts and record temperature, relative humidity and dew point over an Ethernet network or the Internet with no special software—just a web browser. It has a removable 2 GB SD flash memory card that can store up to seven years of readings taken at 10 sec intervals as a simple text file for spreadsheets and other programs. It can be read directly on a PC or Mac with a USB card reader. You also can download the data remotely over an Ethernet network or the Internet.