This unique and patented device has helped stop false fire alarms around the world for over 30 years, without restricting legitimate alarms.
STI-6540 consists of a clear, tamperproof, super tough polycarbonate cover and frame that fits over manual pull stations. Additional models are available with a built-in warning horn that sounds when cover is lifted to gain access to the pull station (STI 6600). The STI-6540 offers excellent protection against physical damage (both accidental and intentional).
STI-6540 FEATURES
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Cover is UV-stabilized.
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Three year guarantee against breakage of polycarbonate in normal use.
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Proven effective for more than two decades.
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STI-6540 is for flush mount pull stations (surface - STI 6545 ).
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UL Listed to U.S. and Canadian safety standards.
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Typical working properties of polycarbonate are -40° to 250°F (-40° to 121°C).
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Fits virtually all manual pull stations (see Technical Data Sheet for dimensions).
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ADA Compliant.
