Check the listing for details. TandD TR75A Bluetooth Thermocouple Data Logger. Condition: New. Listed at 219.00 USD. TandD TR75A Bluetooth Thermocouple Data Logger Measure and Record (2) Temperature Readings Using External Thermocouple Probes -40°C to 110°C Temperature Measurement Range with ±0.3°C Accuracy Automatic Upload of Recorded Readings to TandD WebStorage Cloud Service at Set Interval and Internal Storage for Backup if Wireless Access Not Available Compatible with the Free TandD WebStorage Cloud Service for Viewing your Recorded Readings Anywhere, Anytime Requires Thermocouple Sensors Includes T&D PC Software is Available as a Download, (2) AA Alkaline Batteries and User Manual.TandD TR75A Bluetooth Thermocouple Data Logger Specifications Measurement 2 Temperature Channels for External Thermocouples Thermocouple Supported Thermocouple Types: K, J, T, E, S, R Type K: -199°C to 1370°C @ ±(0.5°C + 0.3% of Reading) at -100°C or Above Type J: -199°C to 1200°C @ ±(0.5°C + 0.3% of Reading) at -100°C or Above Type T: -199°C to 400°C @ ±(0.5°C + 0.3% of Reading) at -100°C or Above Type E: -199°C to 1000°C @ ±(0.5°C + 0.3% of Reading) at -100°C or Above Type S: -50°C to 1760°C @ ±(1.5°C + 0.3% of Reading) at -100°C or Above Type R: -50°C to 1760°C @ ±(1.5°C + 0.3% of Reading) at -100°C or Above Cold Junction Compensation (CJC): ±0.5°C @ 10°C to 40°C; ±0.8°C @ other ranges Resolution: 0.1°C (Type K, J, T and E); 0.2°C (Type S and R) 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. 10 Months (Auto-Upload Interval @ 1 Hour) Approx. 12 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 Wireless LAN Communication · Standard: IEEE 802.11b/g/n · Security: WEP (64 bit/128 bit), 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