Check the listing for details. TandD TR72A Bluetooth & WIFi Humidity and Temperature Data Logger. Condition: New. Listed at 269.00 USD. TandD TR72A Bluetooth & WIFi Humidity and Temperature Data Logger Measure and Record Humidity and Temperature Readings Using External Sensor Probes 0°C to 55°C (Temperature) and 10 to 95% RH (Humidity) Measurement Range with ±0.5°C and ±5% RH Accuracy Automatic Upload of Recorded Readings to TandD WebStorage Cloud Service at Set Interval and Internal Storage for Backup if WiFi or Bluetooth Access Not Available Compatible with the Free TandD WebStorage Cloud Service for Viewing your Recorded Readings Anywhere, Anytime Includes Humidity and Temperature Sensor (#THA-3001), T&D PC Software is Available as a Download, (2) AA Alkaline Batteries and User Manual.TandD TR72A Bluetooth and WiFi Humidity and Temperature Data Logger Specifications Measurement Temperature and Humidity Humidity Sensor Type: Polymer Resistance Measurement Range (Internal Sensor): 10% RH to 95% RH Accuracy: ±5% RH @ 25°C, 50% RH Resolution: 1% RH Thermal Time Constant: Approximately 75 Seconds Response Time: 7 Minutes to 90% Temperature Sensor Type: Thermistor Measurement Range (External Sensor): 0°C to 55°C Accuracy: ±0.5°C Resolution: 0.1°C Response Time: 7 Minutes to 90% Data Storage Capacity 30,000 Readings/Samples Sampling Interval 1, 2, 5, 10, 15, 20, 30 Seconds 1, 2, 5, 10, 15, 20, 30, 60 Minutes (Total of 15 Choices) Recording Mode Endless: Overwrite Oldest Data when Capacity is Full One-time: Stop Recording when Capacity is Full LCD Display Items Current Readings / Recording Settings / Battery Life Warning / Over Measurement Range Warning / Amount of Recorded Data Power Battery:(2) AA Alkaline External: USB, AC Adapter (#AD-05A2 or #AD-05C2) Battery Life Approx. 10 Days (Auto-Upload Interval @ 1 Min.) Approx. 1 Year (Auto-Upload Interval @ 1 Hour) Approx. 15 Months (Auto-Upload Interval @ 12 Hour or More) NOTE: Battery Life Depends on Recording Environment, Frequency of Uploads, Bluetooth Activation, Sampling Rate and Battery Performance Communication Types WiFi Communication · Standard: IEEE 802.11b/g/n · Security: WPA-PSK (TKIP), WPA2-PSK (AES) · WPS 2.0: Push Button Configuration · Protocol: HTTP, DHCP, DNS Bluetooth Communication · Standard: Bluetooth 4.2 (Bluetooth Low Energy) USB Communication (#CABLE-USBMB-HS USB Cable Required) Software Compatibility TR-7wb/nw for Windows, T&D Graph, T&D Data Server (for PC) Operating Environment Temperature: -10°C to 60°C Humidity: 90%RH or Less (No Condensation) Weight 55 grams Dimension 58mm x 78mm x 26mm