The STI 13510NG Universal Stopper by Safety Technology International is designed to protect pull stations with a robust polycarbonate cover suitable for indoor and outdoor use. It features a surface mount design with an enclosed back box and open mounting plate, sized to fit most pull stations and equipped with a high strength continuous hinge. This model, without a horn and label, offers protection against vandalism and accidental damage. Certified to UL/cUL standards, it also meets NEMA Type 3RX and ADA compliance requirements, ensuring reliability and accessibility.