Product review (5 stars): lacrosse Alerts internet temperature and humidity monitor - Great value.
Works as specified.  Had no problems with installation after following the online activation instructions.  Surprised when I received an online alert the second day telling me the temperature had increased to 93.3 degrees!  Found that in the position I installed the sensor the sun shines on it for about 30 min every morning at about eight o'clock - moved the sensor to interior room.  Would definitely buy again.