100 Original and Good Quality with Free After-sale Warranty. Adopt high-quality large chip, with 192 192 pixels and 200 fingerprint capacity M25 metal thread design, durable 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 Durable and reliable: Made of high-quality materials to ensure durability and long-term reliability in various 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 bps 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 will not affect use Packag