Bluetooth Temperature Sensor-- The Bluetooth V5 0 Temperature Sensor Offers You A Temperature Range Of -20-60 (-4-140) And A Humidity Range Of 0 ~ 100 Rh You Can Easily Monitor Temperature And Humidity Data In The Sensor Blue App Via Bluetooth The Wireless Real-Time Monitoring Makes Everything Under Control Accurate Sensor - With The Sensor, It Offers More Precise Monitoring The Temperature Is Accurate To Within 0 5 1) And The Humidity Is 5% Rh It Is Always Updated Once A Second So That The Measurement Is More Accurate Multifunctional - You Can View The Minimum And Maximum Temperature And Humidity By Connecting To Sensor Blue Via Bluetooth 5 0 You Can Also Set The Monitoring Range For Temperature And Humidity The Value In The App Will Turn Red When It Is Out Of The Monitoring Range And Send A Reminder To You The Thermometer Records A Data Record Every 10 Minutes And Also Supports The Export Of Temperature Data Compact & Lightweight - The Wireless Bluetooth Temperature And Humidity Sensor Is Small, Space-Saving And Handy The Battery Life Is Approx 100 Days With Low Power Consumption And You Can Replace It Yourself A Hanging Hole Is Designed For Different Placements According To Your Wishes High Compatibility - The Bluetooth Thermometer Supports Android 4 3 And Higher / Iphone 4S And Higher Phones, Which Could Be Used With A Wide Range Of Compatibility Smart Bluetooth App Can Connect Up To 100 At The Same Time When The Mobile Phone Receives Data From The Thermometer, The Distance To The Sensor Without Any Obstacles Should Be A Maximum Of 50 Meters