Product review (1 stars): Slow and inaccurate
Complete junk. Not only is it inaccurate, it's painfully slow. When taking the outdoor sensor indoors after a few hours, the temperature did not change at all within 10 minutes. Nor did it change when breathing on it...not even the humidity changed. Apparently my breath is 59% humidity. Right out of the box when the two units were standing next to each other, they were showing different temperatures. Indoors showed 66 while the outdoor showed 68. Don't buy this horrid thermometer.