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2. Full body scanner - Wikipedia

   en.wikipedia.org/wiki/Full_body_scanner

   A full-body scanner is a device that detects objects on or inside a person's body for security screening purposes, without physically removing clothes or making physical contact. Unlike metal detectors, full-body scanners can detect non-metal objects, which became an increasing concern after various airliner bombing attempts in the 2000s.

3. 7 Best Metal Detectors of 2023, Reviewed by Experts - AOL

   www.aol.com/7-best-metal-detectors-2023...

   Makro Simplex+ WHP Waterproof Detector. Novice treasure hunters will appreciate the easy-to-use Nokta Makro Simplex+.Users can quickly toggle through four different modes (metal, field, park and ...

4. Unearth Your Next Hobby With These Expert-Recommended Metal ...

   www.aol.com/best-metal-detectors-uncover-buried...

   Scavenge for gold, coins, and other buried treasure with these metal detectors, including models from Garrett, Nokta, and Minelab. Unearth Your Next Hobby With These Expert-Recommended Metal Detectors

5. Google Nest - Wikipedia

   en.wikipedia.org/wiki/Google_Nest

   1,100 (2015) Parent. Google. Website. nest .com. Footnotes / references. [1] Google Nest is a line of smart home products including smart speakers, smart displays, streaming devices, thermostats, smoke detectors, routers and security systems including smart doorbells, cameras and smart locks. [2]

6. Metal detector - Wikipedia

   en.wikipedia.org/wiki/Metal_detector

   A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector consists of a control box, an adjustable shaft, and a variable-shaped pickup coil. When the coil nears metal, the control box signals its presence with a ...

7. Proximity sensor - Wikipedia

   en.wikipedia.org/wiki/Proximity_sensor

   A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation ( infrared, for instance), and looks for changes in the field or return signal. The object being sensed is often referred to as the proximity ...