ADC-T40K-HD and ADC-S40-T Sensors

Here are the pics for just 2 sensors without the thermostat. See how it averages to 79 - 80 degrees, but on the thermostat, it is still 74 degree.

To clarify, does the thermostat run the cool based on the averaged 79 (even thought it says 74) or does it activate cool based on the thermostat temp by itself, even if averaging is active?