Proximity sensors

Devices that detect the presence of nearby objects without physical contact.

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2. Biometric Vs. Digital Locks: Tech in Security (Elaborated)
3. RFID Vs. NFC in Home Security: Applications (Outlined)
4. Security Cameras Vs. Alarm Systems: Battle of Protection (Decoded)
5. Corporate Security Vs. Residential Security: Industry Insights (Contrasted)
6. Fire Alarm Technician Vs. Security Installer: Who Does What? (Explained)
7. On-Site Vs. Remote Security Jobs: Work Modes (Discussed)