STI-1100NR Stopper Ii Flush Mount Guard with Horn

Product Description

The SAFETY TECHNOLOGY INTL INC STI-1100NR is a Stopper II flush mount push button guard with an integrated horn, designed for use without a label window. It mounts directly over existing push buttons, exit devices, and similar controls to deter unauthorized or accidental activation. When the guard is lifted, the built-in horn sounds an audible alert, notifying personnel that the protected device has been accessed. This type of guard is typically installed by electricians or security technicians in commercial, institutional, and industrial environments where access control and tamper deterrence are required.

The STI-1100NR is suited for applications over flush-mounted push buttons and exit devices in hallways, stairwells, equipment rooms, and other areas where accidental or unauthorized activation poses a safety or operational risk. The no-label configuration is appropriate for installations where custom or pre-printed labeling is not needed or will be applied separately. It is sold as a single unit and is a common specification in commercial building security and life safety system installations.

Key Features

• Integrated horn sounds upon guard activation to alert personnel of access
• Flush mount design fits over existing push buttons and exit devices without major modification
• No-label configuration for installations requiring separate or no labeling
• Deters accidental and unauthorized actuation of protected controls
• Single-unit packaging suitable for individual device replacement or new installation

Compatibility

Designed as an OEM-style replacement or new-installation guard for flush-mounted push buttons and exit devices in commercial and institutional settings.

Installation Notes

Installation is typically performed by a licensed electrician or qualified security technician. Disconnect power to the protected circuit and any connected alarm or control systems before beginning installation. Ensure the guard is properly aligned over the existing device and that the horn wiring, if applicable, is connected in accordance with local electrical codes and NEC requirements. Do not obstruct the horn aperture during mounting.