Method and apparatus for automatically transmitting temperature information to a thermostat

In combination with a digital thermostat, at least one temperature sensing apparatus providing temperature information to the thermostat from a remote location, the temperature sensing apparatus comprising:

• a sensor for sensing temperature;
• a processor connected to the sensor with a memory unit for storing sensed temperature data and a comparator for comparing a current sensed temperature with a stored previously transmitted temperature;
• and
• a transmitter for transmitting the current sensed temperature on a frequency selected within a fixed range, when the difference between the current sensed temperature and the stored previously transmitted temperature determined by the comparator exceeds a predetermined value.

In combination with a digital thermostat, at least one programmable remote temperature sensor providing temperature information to the thermostat, the temperature sensor comprising:

• a temperature sensing member for sensing temperature at a specified time period;
• a storage member for storing sensed temperature data;
• a comparator for comparing a current sensed temperature with a stored previously transmitted temperature;
• a transmitter for transmitting the current sensed temperature together with a signal uniquely identifying the sensor to the digital thermostat on a frequency selected within a fixed range, when the difference between the current sensed temperature and the stored previously transmitted temperature determined by the comparator exceeds a predetermined value;
• and
• a comfort adjust member for setting an offset to be transmitted with the current sensed temperature.