STI (STI-13200NC) Universal stopper dome cover w/clear spacer

The STI STI-13200NC is a Universal Stopper without horn — a clear polycarbonate protective cover for surface-mounted pull stations, keypads, intercoms, emergency buttons, and similar devices. First, the installer mounts the clear spacer to the wall over the protected device. Then the polycarbonate dome cover snaps over the spacer on a high-strength continuous hinge. As a result, the device stays fully visible, ADA-compliant, and operational while gaining vandal and impact protection.

What the STI STI-13200NC is built for

Manual pull stations, keypads, emergency buttons, and similar wall devices face routine accidental contact and intentional vandalism. However, removing the device defeats the protection it provides. Therefore, the STI-13200NC cover protects the installed device without restricting operation, blocking visibility, or impeding accessibility.

Verified STI STI-13200NC specifications

• Family: STI Universal Stopper — clear, no horn (the “NC” suffix means No-horn, Clear)
• Cover type: Surface mount, low profile, ADA Compliant — less than 4 inches deep
• Material: Thick, super-tough, UV-stabilized polycarbonate (clear)
• Spacer: Clear spacer included
• Mounting: Surface mount; high-strength continuous hinge
• Operating range: Polycarbonate working properties -40° to 250°F (-40° to 121°C)
• Compliance: ADA Compliant — less than 4 in. wall projection
• Listing: UL Listed to U.S. and Canadian safety standards
• Protects: Pull stations, keypads, intercom stations, emergency buttons, electrical light switches, duplex plugs, and similar wall devices
• Warranty: Three-year guarantee against polycarbonate breakage in normal use

Where STI-13200NC fits in the Universal Stopper family

The STI-132xx series is the Universal Stopper line. Specifically, the NC suffix means No-horn, Clear with surface mount; FR means Fire-label variant; the 134xx siblings add an enclosed back box and sealed mounting plate. Furthermore, horn-equipped variants in the line add a piezo alarm. As a result, ordering the wrong suffix yields a different label, mount, or sound option.

Application context

Schools, hospitals, transit stations, and public buildings are typical installations. In addition, the low-profile design and ADA compliance make the STI-13200NC suitable for code-mandated accessible installations. However, the no-horn variant does not provide a tamper audible — for tamper alarming, specify a horn-equipped Universal Stopper (e.g. STI-13000 series with horn).

Need help selecting the right part or verifying compatibility? Our team supports thousands of commercial fire alarm installations every year. Call us at 1-888-557-0558 or email sales@lifesafetycom.com for application guidance, lead-time updates, or volume pricing.