These sensors are typically built into fingerprint modules and are widely used for computer and data security. The key advantages of fingerprint sensors include high accuracy, reliable performance, and. A fingerprint sensor definition is a security system that is used to identify as well as authenticate an individual's fingerprints to allow or reject access to a physical facility or a computer system. Different fingerprint collecting techniques, which supply. The two most common fingerprint sensors in use today are optical sensors and capacitive sensors. How does the Fingerprint Sensor Module.