STI 9712 Steel Web Stopper for Photoelectric Smoke Detector, White

Keep critical fire detection and monitoring systems secure without compromising performance. The Safety Technology International STI 9712 Steel Web Stopper protective cage is designed to shield photoelectric smoke detectors from vandalism, accidental damage, and tampering—helping facilities maintain uninterrupted surveillance and life-safety coverage. Constructed from coated 9-gauge steel in a patented octagonal web pattern, this protective cage combines maximum impact resistance with minimal signal interference. The surface-mount design installs quickly using the supplied clamps and hardware and allows simple removal for service, reducing downtime for maintenance teams. Rated for indoor use and engineered to withstand temperatures from -40° to 212°F, the STI 9712 is ideal for high-risk or high-traffic locations such as schools, hospitals, correctional facilities and public venues. By protecting detectors you reduce repair costs and preserve accurate monitoring and alarm response. Add the STI 9712 Steel Web Stopper to your security and fire-protection strategy to improve system longevity and operational reliability—order now or specify it for your next installation.

• Protects photoelectric smoke detectors from vandalism and accidental impact to maintain continuous monitoring and reduce false alarms
• Heavy-duty 9-gauge coated steel construction delivers long-term durability and corrosion resistance in indoor environments
• Surface-mount design with included clamps and hardware enables fast installation and quick removal for service, saving maintenance time
• Engineered to perform in extreme temperatures (-40° to 212°F), ensuring reliable security coverage in controlled environments
• Low-profile, octagonal web design preserves detector sensitivity and visibility while providing high-impact resistance