Product review (5 stars): Monitoring Doghouse Temperatures
I placed the sensor inside our older dog's doghouse to monitor the temperature.  I had placed a panel heating element in the walls of his doghouse but wasn't sure that it was really warming the space enough to keep him comfortable.  With the sensor I can tell just how warm it stays.  We had below zero temperatures and I did need to bring him in, but for most nights that stay around freezing, his little house was 30-40 degrees warmer.