The Triplett Model RHDL95-NIST Temperature/Humidity/Dew Point Monitor with SD Card Datalogging can simultaneously display/record temperature, humidity, dew point and time in virtually any indoor setting. This unit comes with a certificate of traceability to NIST that proves this unit matches the standards established by NIST. This can eliminate the manual recording of data in labs, greenhouses, warehouses, HVAC systems, storage areas, office space, classrooms, museums, and other controlled environmental settings. This unit features a user adjustable sampling rate from 1 to 720 minutes and programmable high/low alarms with audible/visual alerts for each parameter when settings are exceeded. The RHDL95 is capable of recording the highest and lowest readings with time and date stamp with the Min/Max feature. The SD card can be used for transferring recorded data to users PC in .txt format.