K202 Fingerprint Control Board Description A compact control board designed to manage fingerprint access systems using a 12V power supply. The board provides a relay output for direct control of electric locks or alarm inputs and a user adjustable closing time to match different lock types and access requirements. Ideal for integration into small to medium access control installations where low power consumption and simple relay control are required. Key benefits Low power operation: Designed to work with a 12V power supply to minimize standby consumption and reduce overall energy use. Reliable relay output: Provides a clean relay switch for driving electric locks, magnetic strikes, or auxiliary alarm inputs without additional drivers. Adjustable closing time: Configure how long the relay remains active after a valid fingerprint to accommodate different lock mechanisms and user needs. Simple integration: Intended for straightforward connection with fingerprint modules and 12V locking devices, reducing installation complexity. Practical form factor: PCB layout is suitable for mounting inside control enclosures used for door access systems. Core functions and attributes Function: Central control interface for fingerprintbased access with relay switching and timeout adjustment. Power: Accepts a 12V DC power supply optimized for low power draw. Output: Relay output for direct control of locks or signaling external devices. Adjustable timing: Closing time can be set to match mechanical or electronic lock response. Compatibility: Works with fingerprint modules and 12V electric locks or access devices that accept relay control. Typical applications Small office door access: Control entry doors in small offices or workspaces using biometric verification and timed lock release. Residential and apartment entry: Add biometric control to residential doors or multiunit entry points where a 12V lock is used. Equipment room or storage cabinet security: Control access to utility rooms, storage areas, or cabinets where a relay driven lock is sufficient. Why choose this board This control board focuses on the core needs of biometric access projects: low power operation, dependable relay switching, and flexible lock timing. It streamlines integration with common 12V fingerprint modules and locking devices, making it a practical choice for installers and integrators who need a simple, configurable control interface without unnecessary complexity. Model K202 Fingerprint Control Board