Check the listing for details. TandD TR43A Bluetooth Temperature and Humidity Data Logger. Condition: New. Listed at 189.00 USD. TandD TR43A Bluetooth Temperature and Humidity Data Logger External Sensor for Humidity and Temperature Measurements in an Indoor Environment Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth Smart LE Communications 0C to 55C Temperature and 0 to 95% RH Measurement Ranges with a ±0.5°C and ±5.0% RH Accuracy User-Replaceable Lithium Battery with 1.5 Year Typical Life (10 Minute Sampling Rate) Stores up to 16,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available Compatible with the Free TandD WebStorage Cloud Service for Viewing your Recorded Readings Anywhere, Anytime ThermoREC and ThermoStorage Apps Available from Apple Store and Google Play for Setup and Reporting New! TR4 Report App for Viewing, Annotating, Saving and Emailing Reports. Available for iOS. Includes THB3001 Temp-Humidity Sensor, 1/2 AA Lithium Battery and StrapTandD TR43A Bluetooth Humidity and Temperature Data Logger with External Sensor Specifications Humidity Sensor Type: External Polymer Resistance Measurement Range: 10% to 95% RH Accuracy: ±5.0% RH @ 25°C, 50% RH Response Time: 90% at 11 Minutes Resolution: 1% RH Temperature Sensor Type: External Thermistor Measurement Range: 0°C to 55°C (32°F to 131°F) Accuracy: ±0.5°C Response Time: 90% at 11 Minutes Resolution: 0.1°C Data Storage Capacity 16,000 Total Readings (8,000 Temperature and 8,000 Humidity Readings) Memory Mode Overwrite when Full or Stop When Full LCD Display Measurements, Recording Status, Battery Life Warning, etc. Sampling Rate 1 Second to 60 Minutes (User-Specified) Power Source 1/2 AA 3.6 Volt Lithium Battery (User-Replaceable) Battery Life Up to 1.5 Years @ 10 Seconds Sampling Interval Communications Type: Bluetooth Wireless Wireless Data Standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.2) Software ThermoREC (Android 4.4+, iOS 9.0+), ThermoStorage, TR4 Report (iOS 9.0+) Note: Bluetooth 4.2 is Required on your Mobile Device (Phone or Tablet) OS Compatibility Android Phones and Tablets iPhone, iPad, iPod Touch with iOS 7.1 or Later Bluetooth 4.2 or Later Devices Smartphone, Tablet Operating Environment Temperature: -40°C to 80°C (-40°F to 176°F) Humidity: 0 to 90% RH (No Condensation) NOTE: -25°C to 80°C During Wireless Communication Standards Compliance CE, IP64 (Splash Proof) Environment Primarily Designed for Indoor Usage Weight 45 grams (1.58 oz.) Dimensions 6.2 cm x 4.7 cm x 1.9 cm (not including Sensors and Protrusions)