Modern Guard Tour Systems in Singapore typically comprise several key technological elements. At the heart of the system are robust handheld devices (often ruggedized for field use) carried by security guards, which are used to scan uniquely identifiable checkpoints. These checkpoints can be RFID tags, NFC tags, QR codes, or even GPS coordinates for outdoor patrols. https://guardworkforce.com.sg/guard-tour-systems-in-singapore/