I too had my HD display crap out after 2 years and went to the WiFi version
That unit as per the other person says, will not stay connected to My Acurite or WU for more than a few days and needs to be factory reset to fix it. I have also gone back to connecting the sensor thru the old Access unit and just use the display as a display
They keep telling me they have a fix coming but this is their strategy they wait you out till you give up, I had a defective UV sensor and it took them a year to send me a new unit, every month they promised a fix was coming
This company is a joke, crappy electronics that should never be put on the market and then they don't stand behind the equipment.