Grow R502-a Small Circular Ring RGB LED Fingerprint Module

Grow R502-a Small Circular Ring RGB LED Fingerprint Module. High Recognition Rate: Adapts to dry, wet, light texture, and old fingerprints with high accuracy. Compact Circular Design: Thinner and smaller than R503 with a unique circular ring RGB LED indicator. Fast Scanning Speed: Scanning speed under 0.2 seconds and verification speed under 0.3 seconds. Low Power Consumption: Typical standby current is only 2uA at 3.3V voltage. Durable Construction: Features 1 million times abrasive resistance and 15KV anti-static capacity. Wide Operating Range: Works in temperatures from -20C to 60C with 10-85% humidity.