Fingerprint Module - Capacitive Rectangle Sensor UART Communication Easy to use, no need to understand the fingerprint algorithm and internal structure, just simple commands to complete the corresponding operations. Built-in commercial algorithm supports fingerprint entry, fingerprint comparison, fingerprint image extraction and fingerprint eigenvalue uploading, with stable performance and fast recognition speed. Capacitive fingerprint identification, sensitive sensing, fingers can be quickly recognized by gently touching window. High hardware integration, the main control and fingerprint sensor are integrated into one unit, which is convenient to be embedded into small volume applications. Due to different batches, there may be differences in product appearance and printed text, which not affect use Color:As Shown Material:plastic 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.