From Mouser Electronics, Inc.

The heart of building automation is in the electronics. Building automation covers heating and cooling with input from a thermostat, as well as intelligent lighting control and smart metering. According to a 2008 study, the largest source of commercial energy consumption is space heating at 36%, followed by lighting at 21%, cooling and water heating at 7% each.

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Products & Services
Thermistors
Thermistors are thermally-sensitive devices whose electrical resistance varies with temperature. Unlike RTDs and thermocouples, thermistors do not have standards associated with their resistance vs. temperature characteristics or curves.

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