Handheld fingerprint devices often support multi-modal functionality, including RFID card scanning, PIN input, and facial recognition. These secondary methods act as backups in case of fingerprint issues due to cuts, dirt, or wear. Multi-modal systems offer flexibility while maintaining high security, particularly in high-stress or manual labor industries where fingerprint quality may... https://mobiworkforce.com.sg/products/handheld-biometric-fingerprint-attendance/