"Paperless chart recorder is easy to set up and operate. Shows simultaneous numerical and graphical display of humidity and temperature readings, plus time and date. Internal memory records up to 49,000 data points that can be transferred to a PC for analysis. Great for monitoring and recording laboratory or clean room temperature and relative humidity, recording process conditions and monitoring controlled environment areas like freezers, storage areas and other critical sites. Simultaneous numerical and graphical display of humidity and temperature readings, plus time and date Measures humidity -10 to 95RH Measures temperature -20F to 140F plus calculates dew point Basic accuracy 3 RH, 1.8F/1C Large"