Onset HOBO Data Logger, Temp/Humidity, Bluetooth

Data Logger, Temperature And Humidity, Temp.Range (F) -4 Degrees To 158 Degrees , Relative Humidity Range 1 Percent To 90 Percent, Accuracy +/-0.38 Degrees F, Battery Life 1 Yr., Sample Point Storage 84, 650, Digital Readout Yes, Ac Adapter No, Waterproof Ip50, Time Intervals 1 Sec.To 18 Hr., Alarm Yes, Width (In.) 3.34, Depth (In.) 0.9, Height (In.) 1.44, Software Required Free App, Special Features Bluetooth Smart Wireless Communications, Data Sharing, Rohs Compliance'