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Advanced Algorithm and Acquisition Chip: Our fingerprint sensor is equipped with a built-in algorithm chip along with a circular acquisition chip.

Fingerprint Reader, Fingerprint Sensor, R503 Circular Capacitive Fingerprint Identification Module with 2-Color Ring Indicator Light

Basic Fingerprint Sensor With Socket Header Cable : ID 4690 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Rugged Panel Mount Fingerprint Sensor with Bi-Color LED Ring [R503] : ID 4651 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Adafruit fingerprint sensor model R503 - Project Guidance - Arduino Forum

Interfacing R502/R503 Capacitive Fingerprint Sensor with Arduino

Basic Fingerprint Sensor With Socket Header Cable : ID 4690 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Interfacing R502/R503 Capacitive Fingerprint Sensor with Arduino

Secure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple.

Rugged Panel Mount Fingerprint Sensor with Bi-Color LED Ring

Basic Fingerprint Sensor With Socket Header Cable : ID 4690 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Secure your project with biometrics - this all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple.

Basic Fingerprint Sensor With Socket Header Cable

Rugged Panel Mount Fingerprint Sensor with Bi-Color LED Ring [R503] : ID 4651 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Interfacing R502/R503 Capacitive Fingerprint Sensor with Arduino

Manhattan Contact CCD Barcode Scanner (178488)