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2. Computer fan control - Wikipedia

   en.wikipedia.org/wiki/Computer_fan_control

   A fan controller with LEDs indicating fan status and potentiometers and switches to control fan speeds. Another method, popular with PC hardware enthusiasts, is the manual fan speed controller. They can be mounted in an expansion slot or a 5.25" or 3.5" drive bay or come built into a computer's case. Using switches or knobs, attached fans can ...

3. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   The advantage of the low voltage control system is the ability to operate multiple electromechanical switching devices such as relays, contactors, and sequencers using inherently safe voltage and current levels. [15] Built into the thermostat is a provision for enhanced temperature control using anticipation.

4. Fan coil unit - Wikipedia

   en.wikipedia.org/wiki/Fan_coil_unit

   However, and as is common in most modern buildings with a Building Energy Management System (BEMS), the control of the fan coil unit will be by a local digital controller or outstation (along with associated room temperature sensor and control valve actuators) linked to the BEMS via a communication network, and therefore adjustable and ...

5. Temperature control - Wikipedia

   en.wikipedia.org/wiki/Temperature_control

   Temperature measuring and controlling module for microcontroller experiment. Temperature control is a process in which change of temperature of a space (and objects collectively there within), or of a substance, is measured or otherwise detected, and the passage of heat energy into or out of the space or substance is adjusted to achieve a desired temperature.

6. All of these Black Friday deals would make very good gifts - AOL

   www.aol.com/lifestyle/all-of-these-black-friday...

   Ember Temperature Control Smart Mug 2 $110 $150 Save $40 For the coffee lover who really hates when their cuppa goes cold, the Ember temperature-control mug is a no brainer.

7. Control knob - Wikipedia

   en.wikipedia.org/wiki/Control_knob

   Two control knobs for a heating/cooling system. The left knob controls the temperature while the right controls the fan speed. A control knob is a rotary device used to provide manual input adjustments to a mechanical/electrical system when grasped and turned by a human operator, so that differing extent of knob rotation corresponds to different desired input.