Product review (1 stars): not as advertised
I really tried to make this unit work for me, because it was a nice looking and easy to read unit!  Problem was, move the transmitter more that 6 feet away and it goes bonkers!  Temp and humidity fail miserably.  Bring it within 6 feet, and it works great. I mine was 15 feet from the base unit, with the transmitter outside.  It also had a window to transmit through and/or a thin door.  Was supposed to transmit even a greater distance, of which I cannot remember.  Other units of years past I used have worked great in the same environment.  Had to send it back.  Too bad.
FYI: I performed two "hard restarts" per instructions, and neither caused the unit to perform correctly. My only option was to return it for refund as defective.