A biometric recorder is a device that scans a person's biometric information, like a retina or thumbprint, and replicates it.

He grabbed a small device from the soldier’s belt and lifted it up to the soldier’s eye and scanned it. The device beeped, and Kar Morsen grabbed the soldier’s limp hand, scanning his finger on the same device. It beeped again, saying, “Data recorded.” Kar Morsen held up the device to the eye and fingerprint scanners, and the cell door opened.

– Future