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These virtually indestructible covers (slotted for horn or speaker units and solid for strobe-only alarms) are designed to stop vandalis...

These virtually indestructible covers (slotted for horn or speaker units and solid for strobe-only alarms) are designed to stop vandalis...

These virtually indestructible covers (slotted for horn or speaker units and solid for strobe-only alarms) are designed to stop vandalis...

These virtually indestructible covers (slotted for horn or speaker units and solid for strobe-only alarms) are designed to stop vandalis...

This protective cover has been helping to stop false fire alarms around the world for more than 35 years, without restricting legitimate...

This protective cover has been helping to stop false fire alarms around the world for more than 35 years, without restricting legitimate...

Polycarbonate backplate recommended for use on unstable or uneven surfaces and weather applications. To be used with Stopper models. Specifications...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, ...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, interco...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, ...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, ...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, ...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, ...

STI-1331 STI Universal Stopper Spacer, 1.5" Specifications Weight 0.57 lbs Dimensions 5.42 × 4.00 × 2.18 in Condition New Brand STI ...

These indoor/outdoor low profile or dome polycarbonate covers protect devices such as dual action pull stations, keypads for entry systems, ...

Introducing the STI-14200NR Universal Stopper Low Profile Cover Spacer in Red. This versatile spacer provides extra protection for your STI Low Pro...

Universal Stopper Low Profile designed for areas where abuse is severe and reduced overall height is desired. Constructed of polycarbonate with a c...

Square neoprene gasket used to help make Stopper covers weather resistant. Included in STI-1250 and STI-3150 models. Specifications Weight 0.03 ...

STI-3100 STI Conduit Spacer-Clear For Stopper II Series with Frame Specifications Weight 1.15 lbs Dimensions 8.50 × 5.50 × 2.00 in Manufact...

This protective cover has been helping to stop false fire alarms around the world for more than 35 years, without restricting legitimate...

Safeguard fire extinguishers from theft with STI-6200 Fire Extinguisher Theft Stopper. Made of durable polycarbonate, it's a cost-effective solutio...

The highly effective Exit Stopper can serve as an inexpensive security device and help stop theft by alerting you to any unauthorized exits ...

The highly effective Exit Stopper can serve as an inexpensive security device and help stop theft by alerting you to any unauthorized exits or entr...

This unique and patented device has helped protect everything from push buttons to keypads around the world for over 30 years, without restricting ...