. Adjustable condition to fit everyone . Advanced outdoor thermometer . Humanistic sign on LCD . Easy to set (just stick outside the window) . Wireless thermometer . Environmental protection: low electricity-consuming, no electromagnetic wave . Temperature record report . Still work under bad surroundings(wind, rain, cold) and UV resistant . Automatic calculation for temperature-difference of both sides of the window . Be able to predict temperature change . Approval for temperature-precision test . Approval for water-resistance test . Multi-country patent . CE approval