Adopt high-quality large chip, with 192*192 pixels and 200 fingerprint capacity M25 metal thread design, and easy to install Waterproof process IP65, meeting different scene applications RGB ring indicator: with bright seven-color RGB ring indicator, it can provide visual feedback of operation status, making it easy to use and beautiful in appearance and reliable: Made of high-quality materials to durability and long-term reliability in environmental conditions Working voltage: DC 3.3V Standby current (finger detection): Typical touch standby voltage: 3.3V Average current: 2uA Working current (fingerprint collection): 20mA Power-on start time: 50ms Image size: 192*192 pixel Collection area: 15mm diameter Image resolution: 508 dpi Time to generate feature points: Less than 500 ms Comparison time: 1:N Less than 100ms/fingerprint Eigenvalue size: 512 bytes Template size: 1536 bytes Storage capacity: 200 pieces False acceptance rate (FAR): 0.001% False rejection rate (FRR): 1% Communication interface: UART (3.3V TTL level), default 57600 Working temperature: -20 - +60 Storage temperature: -40 - +75 Working humidity: 10%-85% (no condensation) Storage humidity: Less than 85% (no condensation) Colour:black Material:Plastic + Metal Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Fingerprint Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.