STI will be closed on Friday, July 4th. Normal business hours will resume on Monday, July 7th.
STI will be closed on Friday, July 4th. Normal business hours will resume on Monday, July 7th.
Highly effective alarm deters theft and misuse of fire extinguishers, AEDs, evacuation chairs, and more by alerting to any unauthorized use. When activated, a 95/105 siren sounds. Does not interfere with use of protected item during emergencies.
More videos
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.