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Your cart is empty.Safety Technology International - STI 1100 Stopper II with horn, flush mount, protective polycarbonate cover. This unique and patented device has been helping stop false fire alarms around the world for almost 30 years without restricting legitimate alarms. This tamperproof, tough polycarbonate cover is ideal for schools, hospitals, nursing homes, stores, hotels and public buildings of almost every kind. 95 dB or 105 dB self-contained alarm. Cover is connected to the frame by a cable; when cover is lifted it hangs from the frame by this cable. Horn stops blaring once cover is snapped back onto the frame. Lifetime guarantee against breakage in normal use. End user must verify the alarm and battery function every six months and replace battery annually or as required. UL Listed to U.S. and Canadian safety standards. Includes battery. Polycarbonate rated -40 degrees F to 120 degrees F (-40 degrees C to 49 degrees C). Safety Technology International, Inc. "We protect the things that protect you"
Customer
Reviewed in the United States on January 29, 2025
Excellent way to stop people from falsely pulling the fire alarm. Working in Long Term Care, we had a situation where someone was pulling fire alarm multiple times daily. Easy to install, loud alarm startles
H.A.
Reviewed in Canada on August 21, 2024
It matched the ad. It was simple to install! And the horn was great as we expected!
Kevin
Reviewed in Canada on January 20, 2024
No more prank alarm after installing this
Rev. L. Thomas
Reviewed in the United States on February 6, 2023
This is a great product, and I have used it twice and about to buy another one. I am very happy with the outcome.
Sparky
Reviewed in the United States on June 5, 2022
Made of thick clear plastic. Easy to Install over existing fire alarm pull stations to give a pre-alarm before actual pull station is activated. Makes loud noise that will get noticed and deter someone from pulling fire alarm.
terry
Reviewed in Canada on November 17, 2022
When pulled deliberately or by accident, it sends a loud signal.
Tim Steven
Reviewed in the United States on March 16, 2017
The alarm is extremely loud but mounting clearance can be difficult in tight spaces.
Chadi Soliman
Reviewed in the United States on July 18, 2015
as described, great quality & do the job. expensive but you get what you pay for. this item is an investment for any commercial property. I like the Magnet is very strong & the sound when someone open the cover is very strong too.
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