Lutron MS7012SD is a professional humidity content instrument, used to measure the humidity content value for the materials of grain, corn, rice. cotton, paper etc. Humidity/Temp., Dew point ( Humidity), Wet bulb (Humidity), Type K/J thermometer, 4 kinds measurement are combined into one meter, intelligent and professional. 60cm stainless steel, heavy duty, probe included. Real time SD memory card datalogger with built-in clock and calendar, real time data recorder, sampling time set from 1 second to 3600 seconds, integrated. SD card is not included.