My GH weather gauge came in today. I read the reviews and quite frankly, I wonder if people know how to read instructions? Or do they bother? Mine worked perfectly after following the proper order in which to insert the batteries. Obviously, it makes a difference. Now I can monitor the GH temps at a glance. My obsession about the GH temps have slowed with the help of the thermostat and now the temperature gauge. We have a nice break in the temps to test out all my gadgets. But already I am trusting they will help me all winter long.