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2. Occupancy sensor - Wikipedia

   en.wikipedia.org/wiki/Occupancy_sensor

   Occupancy sensor types include: PIR sensors, which work on heat difference detection, measuring infrared radiation.Inside the device is a pyroelectric sensor which can detect the sudden presence of objects (such as humans) who radiate a temperature different from the temperature of the background, such as the room temperature of a wall.

3. 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.

4. Electro-optical sensor - Wikipedia

   en.wikipedia.org/wiki/Electro-optical_sensor

   An optical sensor converts light rays into electronic signals. It measures the physical quantity of light and then translates it into a form readable by an instrument. An optical sensor is generally part of a larger system that integrates a source of light, a measuring device, and the optical sensor. This is often connected to an electrical ...

5. 7 costly or financial trends to leave behind — and 5 worth ...

   www.aol.com/finance/financial-trends-231457605.html

   3. Joining the memecoin mania. Memecoins are like bitcoin and other cryptocurrencies, but inspired by internet trends, jokes or viral moments without any real purpose behind them, making them one ...

6. Costco's Healthiest Prepared Foods to Start the New Year Right

   www.aol.com/costcos-healthiest-prepared-foods...

   Goat Cheese, Pecan, and Mixed Green Salad. This premade salad consists of mixed greens, pecans, dried cranberries, bell peppers, tomatoes, red onions, and goat cheese with a honey vinaigrette. The ...

7. Minneapolis OKs police reform deal with the US government in ...

   www.aol.com/news/minneapolis-decide-police...

   The Minneapolis City Council on Monday approved an agreement with the federal government in response to the murder of George Floyd that would require reforms within the city’s police department ...