STI-6517A Pull Station Cover Stopper with Sender

Product Description

The SAFETY TECHNOLOGY INT'L INC STI-6517A is a pull station cover stopper with integrated sender designed to protect manual fire alarm pull stations from accidental or unauthorized activation. The unit mounts directly over an existing pull station and triggers an alert signal when the cover is disturbed, giving facility staff or security personnel immediate notification of pull station access. It is intended for installation by licensed fire alarm technicians or qualified electrical contractors in commercial, institutional, and industrial environments where false alarm prevention is a priority.

The STI-6517A is suited for use in schools, hospitals, office buildings, hotels, and other occupancies where pull station abuse or accidental activation is a recurring concern. The stopper with sender configuration provides both physical deterrence and electronic notification, making it a practical solution for facilities that require accountability around manual fire alarm devices. This unit is sold as a single assembly and is not available for individual component purchase.

Key Features

• Integrated sender provides an alert signal upon cover disturbance or removal
• Designed to deter accidental and unauthorized pull station activation
• Mounts over existing manual pull stations without replacing the underlying device
• Single-unit assembly sold as one complete piece per package
• Suited for commercial and institutional fire alarm system applications

Compatibility

Designed as an OEM-style replacement and add-on cover for standard manual fire alarm pull stations in commercial and institutional fire alarm systems. Verify dimensional fit against the installed pull station before ordering.

Installation Notes

Installation should be performed by a licensed fire alarm technician or qualified electrician in accordance with NFPA 72 and applicable local codes. Disable or notify the monitoring station before working on or near active fire alarm devices to prevent unintended alarm dispatch. Follow the manufacturer's wiring instructions for the sender circuit and confirm proper signal operation after installation. Do not permanently obstruct or disable the underlying pull station in any way that would prevent its use in a genuine emergency.