One of the biggest advantages of the QR Code Guard Tour System is its minimal hardware requirement — guards simply use a smartphone or tablet to scan QR codes at checkpoints. There’s no need for expensive RFID readers, NFC devices or specialized equipment. This makes implementation fast, cost-effective and flexible. QR codes can be placed strategically around sites — doors, gates, mac... https://guardworkforce.com.sg/qr-code-guard-tour-system/