Check the listing for details. Onset HOBO MX1104-TEMP-06 Bluetooth Data Logger w/ External Temp Sensor. Condition: New. Listed at 246.00 USD. Onset HOBO MX1104 Bluetooth Data Logger w/ External Temp Sensor Internal Sensors for Temperature, Humidity and Light and External Sensor for Temperature (SD-TEMP-06) Measurements Wireless Transmission of Recorded Readings to Android, iPhone, iPad Devices Using Bluetooth Smart LE Communications -20°C to 70°C (Internal Temp), 0% to 100% RH (Humidity) and 0 to 167,731 lux (Light) Measurement Ranges. (Analog is Dependant on External Sensor) (2) User-Replaceable AAA Alkaline Batteries with 1 Year Life (1 Minute Sampling Rate) Stores up to 1.9 Million Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available Includes Temperature Sensor (SD-TEMP-06), Command Strip, Double-Sided Tape, Hook & Loop Strap and (2) AAA Alkaline Batteries. HOBOconnect App Available on the Apple Store and the Google Play StoreOnset HOBO® MX1104-TEMP-06 Bluetooth Temperature, Humidity, Light abd External Temp Data Logger Kit Specifications External Temperature Sensor (SD-TEMP-06) Measurement Range (in Water): -40°C to 50°C (-40°F to 122°F) Measurement Range (in Air): -40°C to 100°C (-40°F to 212°F) Accuracy (0°C to 50°C): ±0.15°C (±0.27°F) Resolution: 0.002° at 25°C (0.003° at 77°F) Drift: