The STI STI-13220FR is a Universal Stopper with horn and a “FIRE” label — a clear polycarbonate protective cover for surface-mounted manual fire-alarm pull stations. First, the installer mounts the clear spacer to the wall over the protected pull station. Then the polycarbonate dome cover snaps over the spacer on a continuous hinge. As a result, the pull station stays fully visible and operational while the integrated 95+ dB piezo horn deters tamper attempts.
What the STI STI-13220FR is built for
Manual fire-alarm pull stations in schools, healthcare corridors, and public assemblies are frequent targets for false-alarm pulls. However, removing the pull station defeats NFPA 72 coverage. Therefore, the STI-13220FR cover protects the pull station without restricting its operation; lifting the cover sounds the integrated horn, alerting staff before a false pull occurs.
Verified STI STI-13220FR specifications
- Family: STI Universal Stopper — with horn, Fire label (FR suffix = Fire-Rated label)
- Cover type: Surface mount, low profile, ADA Compliant
- Material: Thick, super-tough, UV-stabilized polycarbonate (clear)
- Spacer: Clear spacer included
- Mounting: Surface mount; high-strength continuous hinge
- Label: “FIRE” lettering on the cover
- Integrated horn: Piezo tamper alarm; sounds when the cover is lifted (typical 95+ dB output per STI Universal Stopper catalog)
- Horn power: Battery-powered (9V); battery sold separately
- 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: Manual fire-alarm pull stations and similar fire-rated devices
- Warranty: Three-year guarantee against polycarbonate breakage in normal use
Where STI-13220FR fits in the Universal Stopper family
The STI-132xx series is the surface-mount Universal Stopper line. Specifically, the FR suffix means Fire-label; NC is No-horn / Clear (no label); the 134xx siblings add an enclosed back box and sealed mounting plate. Furthermore, this 13220 variant adds the integrated piezo horn that the 13200 does not have. As a result, the STI-13220FR is the surface-mount, horn-equipped, Fire-labeled variant for protecting manual pull stations.
Why a Fire label matters
NFPA 72 requires manual fire-alarm pull stations to be clearly identified. However, a generic clear cover does not identify the device underneath. Therefore, the STI-13220FR includes “FIRE” lettering on the polycarbonate so the protected pull station remains clearly identifiable to occupants from approach distance. Furthermore, the Fire label confirms to the AHJ that the cover is intended for fire-alarm use.
Application context
School corridors, healthcare facilities, sports complexes, and public assemblies are typical installations. In addition, the integrated piezo horn provides early warning of cover-lift attempts, deterring false pulls. However, the integrated horn requires a 9V battery; verify battery installation during commissioning.
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.
Additional information
| Weight | 0.0024 lbs |
|---|---|
| Dimensions | 12 × 6 × 7 in |
| Condition | New |
| Manufacturers | STI |
| Part Type | Pull Station Cover |
| Key Features | Search page, STI Global (Americas) Safety Technology InternationalCompareMy ListProductsFire Products, Alarms, Buttons &, Switches, Enclosures &, Covers, Wire Cages, Wireless Products, Build It Configurators |
| Dimensions | 1200×630. |
