ZKTeco SLK21M Fingerprint Module User Manual
This user manual provides comprehensive instructions for the SLK21M Fingerprint Module, an enhanced version of the SLK20M with a larger capacity and quicker transmission and comparison speeds. With independent fingerprint recognition software and SDK support, this compact module is ideal for a range of identity authentication scenarios. Learn more about the product's features, application scenarios, and preface in this easy-to-follow guide.