The LEE DAN QS-004S is a 4-button surface mount panel designed for durable and secure communication or control applications. It features a high-grade 16 gauge low carbon stainless steel housing with an integral polycarbonate-protected alphabetical directory. The panel includes an exclusive 3-layer metal speaker baffle and a mylar cone weather-resistant speaker, ensuring reliable audio performance in various environments. Heavy 6A rated solid metal buttons with positive screw terminals enhance operational robustness, while permanent custom engraving on the panel surface and optional building address engraving provide customization and theft deterrence. Tampruf tamper-proof access screws add further security, and custom sizing is available for tailored installation.