Unlock advanced control with this versatile Fingerprint Control Board! Compatible with DC7V-30V voltages, it offers three flexible control modes: inching, self-locking, and power-on. In inching mode, you can adjust the output time for up to 15 minutes, providing precise control. Features a normally open relay and normally closed contact signal output, supporting loads with currents less than 10A. This multifunctional module is perfect for DIY modifications, ideal for access control, automotive systems, electrical control, industrial automation, and more. Easily connect an exit button for added convenience. Control Modes: Inching Mode: Activates upon fingerprint identification and automatically turns off after the set delay time once the finger is released. Self-locking Mode: Powers on after fingerprint identification and immediately disconnects upon a second fingerprint scan. Power-on Mode: Stays on continuously after fingerprint identification and logs out instantly when the finger is released. Fingerprint Module: S4 Standard Storage Capacity: 300 fingerprints Color: As shown Material: Plastic + Metal Package Contents: 1 * Control Panel + Shell, 1 * Fingerprint Module.