1 Piece Wireless Bluetooth Outdoor Thermometer Smart Home Temperature And Humidity Sensor White _x000D_ _x000D_ 1 Piece Wireless Bluetooth Outdoor Thermometer Smart Home Temperature And Humidity Sensor White _x000D_ [Wireless App Control]We uses a high-end Bluetooth 5.0 chip and can easily monitor temperature and humidity data on app via Bluetooth. (Free downloading from App Store and Google Play) _x000D_ [Higher Accurate Monitor]Using an accurate and sensitive Sensirion temperature and humidity sensor, it can achieve a temperature error of 0.5 C ( 1 F), a humidity error of 3%, and refresh once per second for higher accuracy. _x000D_ [Data Storage Export]Support temperature data export function, record a group of data every 10 seconds, can store up to 100 days of data. Data on the APP shows red when data is beyond preset range. _x000D_ [Portable Design]Wireless sensors Smaller size than other s(1.5 x 1.5 x 0.62 inches). Space-saving and portable. It can be used for about 1 year withCR2477 battery. _x000D_ [Bluetooth distance range]This product supports a barrier-free distance of 50 meters between the mobile phone and the transmitter _x000D_ _x000D_ Small size and low power consumption, the product size is about 1.5 x 1.5 x 0.62inches. _x000D_ It can measure indoor high temperature, low temperature and normal temperature, and the measurement speed is fast and the measurement temperature is accurate. _x000D_ Smart Bluetooth app, connect up to 100 at the same time. _x000D_ Temperature range: -20-60 C (-4-140 F); humidity range: 0-99%. _x000D_ Support temperature data export function, record a group of data every 10 seconds. _x000D_ Use CR2477 battery,and battery can be replaced. _x000D_ Reminder: Android phones must turn on geolocation when connecting to sensors. _x000D_ Colour:White _x000D_ Material:plastic _x000D_ Size:15 x 35mm _x000D_ _x000D_ Package Contents: _x000D_ 1 x Host _x000D_ 1 x English manual _x000D_ 1 x Card Needle Removal (for battery removal) _x000D_ _x000D_ Only the above package content, other products are not included. _x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_