STI 13520NB Universal Stopper Dome Cover, Enclosed Back Box and Opened Mounting Plate, Label Hood with Horn, Blue

Protect your pull stations, keypads and emergency controls with the Safety Technology International STI 13520NB protective cover — a purpose-built solution for security and monitoring installations. This Universal Stopper cover delivers durable, weatherproof protection and immediate audible notification: a self-contained 105 dB alarm with horn housing warns of tampering while the NEMA 3RX rated, UV-stabilized polycarbonate housing resists vandalism and harsh outdoor environments. The low-profile, ADA-compliant design (less than 4 inches deep; nominal size 5.95" H x 4" W x 2.18" D) fits most pull stations, duplex plugs, intercoms and access control keypads, simplifying integration into surveillance and access control systems. The enclosed back box and open mounting plate provide secure surface mounting and tidy wiring for commercial and institutional deployments. Ideal for facilities management, security integrators, schools and healthcare sites that need reliable protection for critical devices used in life-safety, monitoring and building automation. Specify the STI-13520NB to harden your security infrastructure against accidental or intentional damage — order now or contact sales for bulk project pricing.

• Protect critical devices from vandalism and accidental activation, reducing maintenance and downtime
• Built-in 105 dB audible alarm and horn housing for immediate notification of tampering or emergencies
• Rugged, UV‑stabilized polycarbonate construction for indoor/outdoor installations and long service life
• Low-profile, ADA-compliant design (under 4" depth) fits most pull stations and access control devices
• NEMA 3RX rated enclosure with enclosed back box and open mounting plate for secure, weatherproof mounting