[Real-time monitoring and recording] The sensor will report when the temperature and humidity change very little. You can view the change of value on APP or display. Record the change of temperature and humidity on the APP, and show you with graphics. [Backlight Support] The sensor has a backlight, it allows you to browse the screen clearly at night. [Angle adjustment] With bracket design, you can adjust the angle properly [&] The sensor is designed with Celsius and Fahrenheit temperature conversion function. You can select the unit to be displayed as needed. The switching speed is related to the data update frequency of the setting. [Wide Viewing Angle] We have carefully designed the viewing range of the LCD screen to provide a viewing angle than other types of similar products. [Temperature Unit Switch] The sensor is designed with Celsius and Fahrenheit temperature display conversion function. You can select the unit you need to display according to your needs. [Wifi+Bluetooth Dual Mode] Faster connection to . Connect to 2 times faster than only Wifi [Share function] Share with your family to control together [Offline function] When the device is offline, the APP will remind the device offline after 30 minutes Power: * 3 (batteries not included) Backlight:Support Wireless:WiFi 2.4GHz IEEE 802.11 b/g Temperature measurement range:-10-55 Temperature accuracy:1 Humidity measurement range:10% RH-99% RH Humidity accuracy:5% RH Attention: 1. Bluetooth is only used for network signal connection, you can not use Bluetooth alone. WIFI + Bluetooth more stable. 2. This product uses battery power, does not contain batteries. Colour:White Material:plastic Size:About 56x56x23mm Package Contents: 1 * wifi thermometer 1 * English manual Only the above package content, other products are not included. 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.