Features: Low-Power Mode: Saves energy and extends battery life with standby current under 1mA. 10A Contact relays: Features a 10A contact relays for controlled switching, making it ideal for robust security integration. vibrations Sensors relays: Adjustable sensitivity and delay ensuring precise triggering and response. Sensitivity: Achieves high sensitivity upon contact, minimizing false alarms and enhancing reliability. Extended Delay Ranges: Versatile operating with delay option from 1 to 240 seconds to meet diverse security requirements. Specifications: Component: Circuit board Technology: High-sensitivity vibrations sensing technology, adjustable delay design Supports multiple vibrations intensity detection, built-in adjustable time relays Size about 63.4x27.2mm/2.5x1.07in Strong compatibility, can be connection and used with a variety of development boards Package Includes: (1) vibrations vibrations module sensors relays switcher note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.