The STONEUK ST-AC105PB is a compact and rugged standalone access controller, built with a metal, vandal-proof enclosure and rated IP66 waterproof, making it ideal for both indoor and outdoor use. It supports card and password-based authentication, offering flexible access control for up to 2,000 users with a single relay output. The device also features Bluetooth connectivity for local access and management via the Tuya mobile app.