Smart Thermometer/Hygrometer, Bluetooth Digital Thermometer/Hygrometer, Smart Sensor, Data Storage, Compact Round Design (3-Pack)

[Smart Thermometer] This smart thermometer and hygrometer is a digital thermometer and hygrometer that connects to your smartphone via Bluetooth. By pairing it with your smartphone, you can check the temperature within approximately 50 meters. It uses the "Sensor blue" app. [High-Precision Sensor] This thermometer and hygrometer allows you to check the temperature and humidity in real time from your smartphone, helping you maintain an optimal indoor environment. You can check temperature and humidity data in 0.5°C increments and humidity in 5% increments, with real-time data updated every second. [Compact Size] The temperature and humidity tester has a compact design, approximately 3.8 cm in diameter. Its pocket-sized size makes it easy to carry around. Its simple and cute design will match any interior. [Alarm Function] If the temperature or humidity exceeds the set range, it will notify you via your smartphone. The temperature range is compatible with temperatures from -20°C to 65°C, so you can place it in your living room, bedroom, baby room, office, refrigerator, balcony, car, cigar box, pet bed, medicine cabinet, or anywhere else you want to detect abnormalities, for peace of mind. [Data Storage Function] The digital thermometer/hygrometer can record temperature and humidity data for approximately 10 minutes for 100 days. Saved data can be output in CSV format and saved for review at any time. Data will be deleted after 100 days, so please save it as needed.