R503-S Fingerprint Identification Module Key benefits Reliable local authentication: built-in full fingerprint identification algorithm and protocol perform capture, comparison, search, and template storage on the module, reducing reliance on host processing. Compact, easy installation: includes a stainless steel threaded bowl for secure mounting; requires a 22 mm diameter installation opening. Low power use: designed for finger recognition with low power consumption, suitable for battery-powered and always-on systems. Sufficient storage for small-to-medium deployments: capacitive sensor (160 x 160 pixels) and storage for up to 150 fingerprint templates. What it does and why you need it Securely captures and verifies fingerprints using a capacitive 160 x 160 pixel sensor, providing consistent biometric input for access, attendance, or embedded security applications. Performs on-module template matching (capture, compare, search, store), which simplifies system design and speeds up authentication without constant host intervention. The stainless steel threaded bowl and standardized 22 mm mounting hole make hardware integration fast and repeatable, lowering installation time and cost. Key attributes Model: R503-S, developed from the R503 series (premium module with upgraded features). Sensor type/resolution: capacitive sensor, 160 x 160 pixels. Template capacity: stores up to 150 fingerprint templates. Functions: fingerprint capture, fingerprint comparison, fingerprint search, template storage. Algorithm/protocol: embedded complete fingerprint identification algorithm and communication protocol for straightforward integration. Power: optimized for low power fingerprint recognition. Material and mounting: stainless steel threaded bowl; installation opening diameter 22 mm. Application coverage: updated design to support a wider range of use cases. Typical applications Access control for small offices or labs: mount in door controllers or electric locks to grant secure entry for authorized personnel. Time and attendance systems for small-to-medium businesses: onboard matching and template storage simplify attendance terminals and reduce backend load. Embedded security for kiosks, lockers, or compact devices: compact mounting and low power consumption make the module a practical choice for standalone biometric solutions. What to expect during integration Use the embedded protocol and algorithm to offload biometric processing to the module; this reduces host CPU requirements and simplifies firmware. Mechanical installation requires a 22 mm diameter hole and securing via the included stainless steel threaded bowl. Design is optimized for straightforward integration into access control panels, attendance terminals, or other embedded platforms that accept fingerprint modules. The R503-S delivers a compact, install-friendly biometric module with onboard matching, modest template capacity (150), and low power operation — suitable when you need dependable fingerprint authentication in constrained or embedded systems.