Safety Technology Int'l Inc SS21A2ZA-EN Key Reset Stopper

Product Description

The SAFETY TECHNOLOGY INT'L INC SS21A2ZA-EN is a green illuminated key-to-reset stopper designed for use with fire alarm pull stations. This device mounts over an existing pull station handle to deter accidental or unauthorized activations while allowing authorized personnel to reset the device using a key. The green illuminated indicator provides a clear visual status signal in low-light conditions. It is typically installed and serviced by licensed fire alarm technicians or qualified electricians working within commercial or institutional life-safety systems.

This stopper is suited for commercial, institutional, and industrial environments where fire alarm pull stations are subject to frequent accidental or malicious activations. It fits over standard pull station handles and provides a physical deterrent layer. The key-reset function ensures that only authorized personnel can restore the pull station to an active, unobstructed state after the stopper has been engaged. The green illumination aids in locating the unit in corridors, stairwells, and other areas with reduced ambient lighting.

Key Features

• Green illuminated indicator for visibility in low-light environments
• Key-to-reset mechanism limits access to authorized personnel only
• Designed to deter accidental and malicious pull station activations
• Mounts over existing fire alarm pull station handles
• Sold as a single unit (each)

Compatibility

Designed as an OEM-style replacement or add-on accessory for standard fire alarm pull stations in commercial and institutional life-safety systems. Consult the manufacturer documentation to confirm fitment with a specific pull station model before installation.

Installation Notes

Installation should be performed by a licensed fire alarm technician or qualified electrician in accordance with NFPA 72 and applicable local codes. Before installing or removing the stopper, notify the monitoring station and follow the authority having jurisdiction (AHJ) procedures to prevent unintended alarm dispatch. Verify that the stopper does not obstruct the pull station handle in a manner that would prevent legitimate emergency activation. Keep the reset key secured and accessible only to authorized facility personnel.