3x4 Matrix 12Key Membrane Keypad Quickly add user input and control to your electronics with this compact 3x4 matrix keypad. The 12button layout provides a simple, reliable interface for menu navigation, numeric entry, and control commands. Designed for easy integration, it works well with microcontrollers and development boards and as a direct replacement for existing control panels. Key benefits Easy integration: 3 by 4 matrix wiring provides 12 inputs using a minimal number of I O lines, simplifying connection to microcontrollers and control circuits. Plug and play: direct replacement design allows simple plug and play installation without wire splicing. Durable construction: built with ABS housing and metal components for wear resistance and prolonged service life. Space efficient: small footprint fits compact enclosures and panels for alarm systems, access control, and device interfaces. Features Layout: 12 keys in a 3x4 matrix Construction: ABS body with metal components Function: reliable input for control and navigation in electronic projects Compatibility: suitable for microcontroller projects, control panels, alarm units, and access control systems Installation: direct replacement style for quick mounting and wiring Typical applications Alarm and security panels requiring numeric entry and simple commands Access control keypads for door systems and entry panels DIY electronics projects and development boards for menu selection and data entry Package contents 1 piece 12button keypad Notes Allow up to 1 mm variation due to manual measurement. Actual product color may vary slightly from images due to monitor differences.