Timex TX1007 Suction Cup Wall Thermometer and Hygrometer (Discontinued by Manufacturer) Durable suction-cup window thermometer/hygrometer for indoor/outdoor use Clear see-through flexible plastic case is durable and weatherproof Reads temperature from -40 to 140 degrees F (-40 to 60 degrees C) Reads relative humidity from 1 to 99 percent; attaches to any window surface Bright red pointer; measures 7 inches tall; 2-year warranty