STI STI-9717 Wire Cage Damage Stopper
Overview
The STI-9717 is a protective wire cage that mounts over horn, strobe, and speaker devices to stop vandalism and accidental impact damage before it takes the device offline. It fits scenarios where life-safety notification hardware sits in exposed, high-traffic, or high-abuse areas — stairwells, corridors, loading docks, detention areas, or any zone where a swinging cart, ladder, or fist could otherwise crack a lens or snap a mounting bracket. Built from 9-gauge steel wire with a corrosion-resistant polyester coating, the cage absorbs impact energy the notification device itself was never designed to take, so you protect the expensive part (the horn/strobe/speaker) with the cheap part (the cage).
Compatibility
The STI Stoppers line for horn/strobe/speaker devices is built around specific mounting orientations rather than a single universal cage — ceiling-mount and wall-mount versions are engineered for use with Edwards GC and Kidde EGC series notification products. Confirm your device's mounting orientation (ceiling vs. wall) against the correct cage variant before ordering, since the cage geometry is orientation-specific. If you're speccing protection across a facility with mixed notification hardware, review the broader access control and life-safety accessories catalog alongside the STI product line to match cage variants to each device type.
Installation Notes
Installation uses included anchors and screws for a quick mount-and-go job, and the cage removes easily when the underlying device needs service or replacement — a real factor if your maintenance team pulls horn/strobes for periodic testing. This is an indoor-rated product, so keep it off exterior-mounted notification devices. Tamper-resistant screws are available as an option, worth specifying for detention, school, or public-corridor installs where the cage itself becomes a target. The cage carries UL/cUL listing for use with equipment listed to UL1638, UL464, and UL1480, plus CAN/ULC-S525, CAN/ULC-S526, and CAN/ULC-S541 — relevant if your fire alarm system's certification depends on every ancillary component holding a matching listing. Backed by a manufacturer warranty against breakage under normal use, which matters most in the high-abuse zones this cage is meant for. For broader facility planning, a video surveillance layer covering the same corridor can help document the vandalism incidents this cage is built to prevent, and pairing installs with a PoE planning guide is worth a look if you're running structured cabling through the same ceiling space.
