Extech Humidity and Temperature DataloggerUp to 16,000 readings for RH/Temp & user-programmable sample rateFeatures:USB interface for easy setup and data downloadSelectable data sampling rate: 1 second to 24 hoursUser-programmable alarm thresholds for RH and TemperatureLCD displays current readings, Min/Max, and alarm statusComplete with 3.6V Lithium battery, mounting bracket with combination lockIncludes Windows 2000, XP, and Vista compatible analysis software