Analyze atmospheric conditions with temperature, humidity and air pressure, obtain data such as dew point, wet bulb temperature, air density, vapor pressure, and enthalpy.
Combining temperature, humidity or dew point temperature to calculate comfort index or to scientifically adjust indoor temperature and humidity.
Use barometer value, temperature and sea level air pressure to calculate altitude.
[Monthly Membership] Purchase a monthly member for $ 0.49 / month and renew it automatically every month.
[Annual Membership] 2.99 $ / year to purchase annual annual membership and automatically renew it annually.