Check the listing for details. HOBO MX1101 Data Logger,Temp/Humidity,Bluetooth 38AX83. Condition: New. Listed at 166.12 USD. Data Logger, AC Voltage Accuracy Not Applicable, Alert Type Digital Display, Sound, Current Channels Not Applicable, Maximum Dew Point Measured Not Applicable, Minimum Dew Point Measured Not Applicable, For Phase Not Applicable, Calibration Certificate Type Not Certified, Minimum Sampling Rate 1 sec, Maximum AC Current Measurement Not Applicable, Maximum Relative Humidity Measured 90 Percent, Maximum AC Voltage Measured Not Applicable, Minimum Relative Humidity Measured 0 Percent Onset's HOBO MX1101 data logger measures and transmits temperature and relative humidity data wirelessly to mobile devices via Bluetooth(R) Low Energy (BLE) technology. The self-contained wireless data logger enables you to access data anytime from an iOS or Android(TM) mobile device. The mobile device is all that.