Is the environmental data reported in real time?
The environment sensor has two work modes:
In charging status, the environment data is reported in real time. During charging the temperature may be higher around 1-2 degrees Celcius;
Working in battery status, the measured environmental data is reported within a 1 minute if there is update, or if no change all data is sychronized within 5 minutes.
Does environment sensor work without power?
There is built-in battery in the device, and the environment sensor can work after charging. When the voltage is below 3.8V as indicated in the App, it is suggested to be charged and it may take around 6-8 hours to finish. Over charge protection is designed in the device as well.
What's the unit for the environment data?
The unit of temperature is the Celsius or Fahrenheit temperature;
"Humidity" refers to the relative humidity, the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at the same temperature. Relative humidity depends on temperature and the pressure of the system of interest;
Luminance is calculated with the data reported by the photosensitive element by a certain fomula, and it is a relative value, just for a reference in a place and there is no standard units.