STI-13400NR Universal Stopper Without Horn Exit Device

Product Description

The SAFETY TECHNOLOGY INT'L INC STI-13400NR is a universal stopper cover designed to protect exit devices, push buttons, and similar controls from accidental or unauthorized activation. Installed over existing hardware, it acts as a physical barrier that requires deliberate effort to operate the protected device. The cover does not include an integrated horn, making it suitable for locations where a silent deterrent is preferred or where a separate alarm system already handles audible notification. Typically installed by electricians, security contractors, or facilities maintenance technicians in commercial and institutional buildings.

The STI-13400NR is used in commercial, institutional, and industrial settings where push buttons, emergency stops, or exit device actuators require protection from accidental contact, tampering, or misuse. Common installation locations include corridor doors, stairwell exits, warehouses, schools, hospitals, and manufacturing facilities. Because no horn is included, this model is well suited for areas where audible alerts are managed by a building-wide fire alarm or access control system rather than a local sounder.

Key Features

• Universal fit design accommodates a wide range of exit devices and push button hardware
• No integrated horn for silent-deterrent or alarm-system-integrated installations
• Acts as a physical barrier against accidental or unauthorized actuation
• Sold individually as a single unit

Compatibility

Designed as a universal-fit replacement or add-on guard cover for standard exit devices and push button controls in commercial and institutional applications.

Installation Notes

Installation is typically performed by a licensed electrician or qualified security hardware technician. De-energize or disable the protected device and any associated alarm circuits before mounting the cover. Verify that the stopper cover clears the actuator travel required for proper device operation after installation. Follow applicable local building codes and NFPA life-safety requirements when installing covers over exit or emergency devices.