Remote Alarm: You can preset temperature and humidity values via the app. When the hygrometer thermometer sensor detects a change, you'll receive a notification via app and email, offering enough time to react through the alarm function.Data Storage & Export: This hygrometer thermometer sensor uploads data to the app via WiFi and Bluetooth. View the temperature and humidity trend chart from the past 20 days and export data from the past 2 years. Ideal for greenhouses, farms, etc.High-Precision Readings: The Swiss-made humidity temperature sensor provides precise readings, measuring temperatures with 0.54F / 0.3 accuracy and humidity within 3% RH. Data is refreshed every 2s, ideal for wine cellars.Compact & Portable Design: This hygrometer thermometer sensor adopts a compact and stylish design equipped with a lanyard, suitable for any corner of the room, such as drawers, cigar boxes, wine cabinets, guitar cases, etc.Smart WiFi Control: Monitor hygrometer data anytime, anywhere. The gateway can be connected through WiFi via the app, pairing up to 10 humidity temperature sensors. Boasts a 2-year battery life (Supports 2.4GHz Wifi networks only)