STI Horn/Strobe Damage Stopper and Enclosed Back Box with Conduit Knockout STI-1210D, Clear
Guard the strobe, keep it visible.
A clear polycarbonate cover with an open back box that fits over a horn/strobe unit. It helps prevent accidental and intentional damage while the device stays visible and easy to service.

Exposed horn/strobes get hit, kicked and tampered with.
Fire and safety devices in busy public spaces take knocks, and a damaged unit is a problem when you need it. A tough cover keeps the device protected without hiding it.
Built to take a beating
The STI-1210D combines a clear protective cover with an open back box for surface mounting.
Clear polycarbonate cover
Molded of clear, thick, UV-stabilized polycarbonate and slotted for a horn/strobe unit.

Sound loss, generic values
The slotted cover is rated at 6.2 dBA sound loss using generic values.
Easy access for service
The design keeps the protected device reachable when maintenance is needed.
Conduit-friendly mounting
The open back box has a conduit knockout, and the spacer easily mounts over exposed conduit.
UL/cUL Listed, ADA Compliant
Listed to UL 1638 under cUL approval, with ADA compliance noted in the certifications.
Everything you need to know.
| Brand | STI |
| Model | Horn/Strobe |
| Product Series | STI-1210 |
| Device Supported | Strobe |
| Material | Polycarbonate |
| Color | Clear |
| Height | 8.5" |
| Width | 6.5" |
| Depth | 5.8" |
| Mount Type | Surface Mount |
| Durability | Damage Resistant, Vandal Proof |
| Country of Origin | US |
STI Horn/Strobe Damage Stopper and Enclosed Back Box with Conduit Knockout STI-1210D, C...
The STI STI-1210D is a Horn/Strobe Damage Stopper and Enclosed Back Box with Conduit Knockout (Clear). It is made for fire alarm, security and facility professionals who need dependable protective cover equipment.
Key Features
- Helps prevent accidental and intentional damage or vandalism to horn and strobe units
- Easy access for service
- Open back box
- UL/cUL Listed, ADA Compliant
- Typical working properties of polycarbonate are -40° to 250°F
- See install for Light Derating Factor
- 8.5 in H x 6.5 in W x 5.75 in D
Specifications
- Brand: STI
- Model: STI-1210D
- Product Line: Damage Stopper
- Product Model: STI-1210D
- Product Series: STI-1210
- Product Type: Security Cover
- Device Supported: Strobe
- Material: Polycarbonate
- Color: Clear
- Depth: 5.8"
- Durability: Damage Resistant, Vandal Proof
- Form Factor: Surface Mount
- Height: 8.5"
- Product Color: Clear
- Width: 6.5"
- Limited Warranty: 3 year
- Additional Information: Easy access for service Sound Loss: 6.2 dBA - Generic Values Spacer easily mounts over exposed conduit
- Certifications & Standards: ADA, CSFM needs local approval, cUL approval for UL 1638 only, MEA STI-1210 and STI-1221 series only, UL Listed for fire voice speakers for STI-1210 series only, Underwriter Laboratories and Canadian UL File S7025
- Features: Conduit Mount, Slotted, UV-stabilized
- Shipping weight: 2.4 lb
Typical Uses
- Preventing false alarms and vandalism on fire and safety devices
- Schools, gyms, hospitals and public buildings
Please confirm that the STI-1210D matches your system, panel, mounting and finish requirements before ordering. Contact us with the model of your existing equipment if you need help checking compatibility.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

STI Horn/Strobe, ready to order.
- Product Series: STI-1210
- Device Supported: Strobe
- Material: Polycarbonate
- Color: Clear
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