Product review (1 stars): Not reliable
I installed this in my FL home to monitor the A/C over the summer and it started working well.  Then sometimes it wouldn't update the readings.  I was there in July and it was working fine.  Now it hasn't worked at all for almost 3 weeks.  My internet connection is OK because I can view my security cameras.  I had to turn off the email notifications because of the constant emails saying the connection was lost.  Unfortunately I can't diagnose it because I'm not there.  So much for using this to monitor the HVAC.  Waste of money.