Product Features: 1. High precision. The sensor uses top suppliers. It can guarantee the high precision of the measurement data. 2. Real-time monitoring and recording. The sensor will report when the temperature and humidity changes very little. You can view the changes in the value on the APP or display screen. Record the temperature and humidity changes on the APP, and use the graphics to show you. 3. Backlight Supported The sensor has backlight, it make you browser the screen clear at night. 4. Wide viewing angle We have carefully designed the viewing range of the LCD screen, compared to other types of similar products, our viewing angle is wider. 5. Scene linkage The sensor can be used as the temperature and humidity data source of Tuya Smart, Smart Life, Amazon Alexa, Google Home. You can do many automated processes based on the data source. 6. Temperature Unit Switch The sensor is designed with a temperature display conversion function of Celsius and Fahrenheit. You can choose the unit that needs to be displayed according to your needs. 7. Third-party voice support. The sensor supports Amazon Alexa, Google Home Asistant. You can check the current temperature and humidity by voice. Product Parameter: Power supply: Battery LR03-1.5V/AAA*3 (not included) Backlight: Supported Wireleass: WiFi 2.4GHz OR Zigbee Temperature Measure Range: -9.9-60 Temperature Accuracy: 1 Humidity Measure Range: 0% RH~99% RH Humidity Accuracy: 5% RH Buying Tips About Displaying 1. The time format cannot be changed. 2. The temperature unit can be switched. About Bluetooth Function Bluetooth function is only useful during configuration. After configuration, the device will shut down the Bluetooth network. About the update frequency of temperature and humidity 1. We used the trigger mechanism When the temperature or humidity change reaches the trigger condition, report the data immediately The fastest update frequency is two minutes. Generally, the data is updated once an hour 2. The sensor cannot set the update frequency, 3. The sensor cannot set alarm, and the alarm function is set on the APP If you need to update data in real time, please purchase a USB powered version. About batteries 1. Only LR03-1.5V alkaline battery can be used (1.2V rechargeable battery may cause the equipment to detect wrong voltage and report low voltage) 2. Batteries of different models cannot be mixed 3. Batteries of different brands cannot be mixed 4. New and old batteries cannot be mixed 5. Do not use inferior batteries Otherwise, 1. configuration failure, 2. battery consumption is too fast How to obtain high-quality batteries or genuine batteries. Please buy them at regular supermarkets or chain stores over time Note: After the device configuration is completed, it needs to be placed in a position where the wireless signal is good, otherwise the power consumption of connecting to the network will increase, which will lead to fast battery consumption About Network Testing The network will consume a lot of power To ensure the service life of the battery, the sensor will stop using the network when it does not need to report data Therefore, it is meaningless to test the network signal of sensors in APP. Error on temperature and humidity 1. All temperature and humidity sensors will have certain errors, please note The error of this sensor is 1 and the error of humidity is 5% RH Any value within this range is normal 2. Sensor error and manufacturing process will lead to certain errors between products of the same model 3. According to Newton"'"s third law, the heat conduction takes a certain time.Therefore, our sensor needs 30 minutes to be consistent with the room temperature, and the measurement will be accurate. About Historical Curves 1. The minimum granularity of historical data (daily chart) is 1 hour, and the minimum granularity of exported data is also 1 hour 2. Days of historical data are stored for 7 days 3. The value of historical data is the average value, that is, the average value in a minimum granularity time Support for third-party smart speakers 1. Because the third-party smart speakers (Google Home/Amazon Alexa) do not have control panels corresponding to temperature and humidity sensors, the temperature and humidity may not be displayed normally on the third-party smart speakers"'" APP. But we have opened the voice query function. Therefore, the current temperature and humidity can be queried by voice 2. Route or automatic process related to temperature and humidity cannot be established on the third-party smart speakers 3. The device does not support Yandex Alice About Automation The sensor uses the principle of Edge Triggered That is, the action can only be triggered if the condition crosses the set condition For example, when the a