R503 RGB Ring Capacitive Fingerprint Module (IP65 Waterproof)

Compact, waterproof fingerprint module

A high-quality capacitive sensor with a 192×192 pixel image area and 508 dpi resolution. Stores up to 200 fingerprint templates for compact access control or device integration.

M25 metal-thread housing makes installation straightforward and long-lasting, and the RGB ring provides clear visual feedback during use.

Performance and reliability

Runs at DC 3.3V with low standby current (~2 µA) and typical collection current around 20 mA, with power-on start time ≤50 ms. Captures a 15 mm diameter area and generates feature points in under 500 ms for fast enrolment.

1:N comparison completes in <100 ms per fingerprint. Template size is 1536 bytes (eigenvalue 512 bytes) with storage for 200 fingerprints; FAR ≤0.001% and FRR ≤1%. Connect via UART (3.3V TTL), default 57600 bps.

Designed for varied environments: operating temperature -20℃ to +60℃ and operating humidity 10–85% (no condensation). Storage temperature -40℃ to +75℃ with humidity <85% (no condensation).

What's in the box & notes

Package includes one fingerprint module in black; construction is plastic and metal. Suitable for dropshipping and wholesale, and sold with the stated after-sale warranty.

Product appearance and printed text may vary between batches without affecting function. Please allow a measurement tolerance of ±1–3 cm and expect minor colour variation due to lighting or display differences.

• 192×192 pixel capacitive sensor
• Stores up to 200 fingerprint templates
• IP65 waterproof with M25 metal thread
• Seven-colour RGB ring for visual feedback
• UART (3.3V TTL) connection, 57600 bps default