Product review (3 stars): Good inside, outside sensor is erratic.
Had to have request to have the order completed after the first delivery; the outdoor sensor was not included. Secondly, the outdoor sensor appears to go "on the blink" at times. I can assure you it is never -40 degrees in Las Vegas, NV., even in the winter shade. The outside sensor is hanging on the patio, well in the shade. I don't know why its reporting is so erratic, perhaps this summer's heat will beat into submission.