STI will be closed on Friday, July 18th. Normal business hours will resume on Monday, July 21st.
STI will be closed on Friday, July 18th. Normal business hours will resume on Monday, July 21st.
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STI manufacturers covers, cages, alarms and custom buttons. Rely on STI® to protect the things that protect you.
How to easily install the Stopper II® with spacer. This unique Stopper II protective cover has helped prevent false fire alarms around the world for over 40 years, without restricting legitimate operation of devices.
Constructed of tough 9-gauge coated steel wire, this cage is an excellent way to protect smoke detectors against both vandalism and accidental damage.