Quote Originally Posted by JPerkins View Post
thermostat is set at 101 but the thermo. still reads 77.6 and the temp gun is showing 87. Would a low battery on therm. cause it to read so low?
That is quite a big difference! I would try using another thermometer to see if the results are different. It might be the batteries, but more than likely it is the thermometer itself. Some of them can be very inaccurate. I would go with the temp gun reading.