Kelvin is a voice-interactive, fully programmable thermostat. It can be operated by pushing its buttons, all of which talk, or by simply talking to the thermostat, which responds to voice commands once it has been programmed. Kelvin can be programmed to lower the temperature daily at specific times of day, such as evening, and to raise the temperature the following morning. It can also be programmed for weekends or vacations, when the residence is unoccupied, and to then adjust automatically for periods when the house is occupied again. It will control both heating and cooling and replaces the existing thermostat in the residence. Measures 5 inches x 5 inches x 1 3/8 inches and is very light gray in color. Tactile arrows mark the 'Raise' and 'Lower' panels. It does not work with heat pumps and we recommend professional installation. Uses 4 AA batteries (NI).

Instructions on cassette or disc are available on request.