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2. Touch-sensitive lamp - Wikipedia

   en.wikipedia.org/wiki/Touch-sensitive_lamp

   A touch-sensitive lamp is a combination of a lamp and a touch switch. They act on the principle of body capacitance, activated by human touch rather than a flip, push-button, or other mechanical switch. They are popular as desk and nightstand lamps. Touch-sensitive lamp switches may be dimmable, allowing the brightness of the lamp to be ...

3. Heat detector - Wikipedia

   en.wikipedia.org/wiki/Heat_detector

   A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass and conductivity of the element regulate the rate flow of heat into the element. All heat detectors have this thermal lag. Heat detectors have two main classifications of ...

4. Nurse call button - Wikipedia

   en.wikipedia.org/wiki/Nurse_call_button

   Pancake nurse call button for limited mobility patients A nurse call button on a pillow speaker with TV controls This hospital bed has a nurse call button on its rails. A nurse call button is a button or cord found in hospitals and nursing homes, at places where patients are at their most vulnerable, such as beside their bed and in the bathroom. [1]

5. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.

6. Susceptor - Wikipedia

   en.wikipedia.org/wiki/Susceptor

   If there is an air gap (or at least, poor thermal contact) between the susceptor and food, the susceptor will heat to a much higher temperature (due to its smaller effective heat capacity when in poor contact with food), and, at these higher temperatures, will radiate strongly in the infrared. This infrared radiation then shines onto the food ...

7. Photoresistor - Wikipedia

   en.wikipedia.org/wiki/Photoresistor

   At night, the heater cools, closing the power contacts, energizing the street light. Photoresistors come in many types. Inexpensive cadmium sulfide (CdS) cells can be found in many consumer items such as camera light meters, clock radios, alarm devices (as the detector for a light beam), nightlights , outdoor clocks, solar street lamps, and ...