Extech SD700 Pressure, Humidity and Temperature Data Logger Triple LCD simultaneously displays Barometric Pressure, Temperature, and Relative Humidity Datalogger date/time stamps and stores readings on an SD card in Excel format for easy transfer to a PC Displays Barometric Pressure in 3 units of measure: hPa, mmHg, and inHg Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds