The front panel includes a keypad for programming and a large, bright,
dual-backlit display. An RS232 PC interface allows the user to download
recorded data. Patented features include double-sided chart paper and
the magnetic hub. The temperature/relative humidity model (CTXL-TRH)
also comes with Windows-based PC application software to log data in
real time, download recorded data or re-scale chart paper. A wireless
temperature/relative humidity probe is offered as an option.Omega Engineering Inc.www.omegamation.com203.359.1660