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2. The 10 Best Outdoor Solar Lights to Make Your Yard Shimmer ...

   www.aol.com/10-best-outdoor-solar-lights...

   From a dark path leading to your front door to some much-needed illumination in your backyard, outdoor light is key. But dealing with odd batteries or pesky outdoor wires is not. That’s why the bes

3. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   PIR sensors identify abrupt changes in temperature at a given point. As an intruder walks in front of the sensor, the temperature at that point will rise from room temperature to body temperature and then back again. This quick change triggers the detection. PIR sensors designed to be wall- or ceiling-mounted come in various fields of view ...

4. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   PIR sensors are commonly used in security alarms and automatic lighting applications. PIR sensors detect general movement, but do not give information on who or what moved. For that purpose, an imaging IR sensor is required. PIR sensors are commonly called simply "PIR", or sometimes "PID", for "passive infrared detector". The term passive ...

5. These 12 Outdoor Lights Will Instantly Cozy Up Your Patio ...

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6. 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.

7. The 10 Best Patio Umbrellas with Lights to Make Your ... - AOL

   www.aol.com/10-best-patio-umbrellas-lights...

   Amazon. If you prefer a well-lit patio come nightfall, this 10-foot umbrella features 24 intense LED lights. At night, the bulbs are reportedly bright enough to take in your summer beach read and ...