Unauthorized exits can cost businesses thousands of dollars in theft, shrinkage, and liability—and they’re often completely avoidable. The STI-6400 Exit Stopper is a powerful deterrent that alerts staff the moment someone attempts to open a protected door. Whether you’re securing a retail back door, a school hallway exit, or a hospital stairwell, this cost-effective alarm helps protect facilities without impeding emergency egress.
Security dealers and low-voltage integrators looking for a profitable, plug-and-play solution for nuisance exit activity will find the STI-6400 Exit Stopper an ideal fit for a variety of commercial installations.
Key Product Features
-
95 or 105 dB alarm (selectable at installation)
-
Indoor and outdoor models available
-
Polycarbonate housing is highly durable and UV-resistant
-
Compact profile for aesthetic installations
-
Built-in key override and tamper-resistant switch
-
Audible alarm sounds when protected door is opened
-
Powered by 9V battery (included)
-
Optional remote monitoring connections (Form C relay)
-
Delayed alarm or immediate alarm activation
-
Red or green cover options for compliance or branding
Use Cases & Dealer Benefits
The STI-6400 is used anywhere unauthorized exits or entry pose a risk to safety, operations, or asset control. These include:
-
Retail Stores: Prevent back-door theft by alerting staff when someone exits through non-public doors.
-
Schools & Campuses: Deter students from using side exits or propping doors open.
-
Hospitals & Healthcare: Control access to staff-only areas and improve patient safety.
-
Theaters, Restaurants & Event Venues: Stop patrons from sneaking in or using emergency exits for convenience.
-
Factories & Warehouses: Monitor secondary exits or fire doors prone to abuse or improper use.
Why It Matters for Dealers
-
Easy Install: Surface-mount with minimal wiring—ideal for retrofits.
-
Fast Turnaround: Most installs can be completed in under an hour.
-
High-Margin Add-On: Adds value to door hardware or intrusion installs.
-
Reduces Callbacks: Proven, reliable technology from STI, with few moving parts.
-
Code Friendly: Designed not to restrict egress, helping integrators avoid life safety conflicts.
Installation & Configuration Tips
Installing the STI-6400 is straightforward, but a few best practices can improve results:
-
Mount Height: Position the unit slightly above the panic bar or handle for maximum visibility and sound coverage.
-
Wiring the Relay Output: The optional Form C dry contact can be integrated with access control systems, intrusion panels, or remote annunciators for added monitoring capabilities.
-
Sound Level Setting: Use 95 dB for low-noise areas like offices; use 105 dB in high-traffic or loud environments like warehouses.
-
Delay Settings: Set a 15-second delay when the door needs to remain open briefly without triggering a nuisance alarm.
-
Battery Access: The STI-6400 features a hinged cover for quick battery replacement without removing the unit from the wall.
For outdoor or high-moisture areas, use the weatherproof version (STI-6400WIR), which includes a gasketed housing and conformal-coated circuitry for extended durability.
Dealer FAQ
Can I connect this to an access control system?
Yes. The STI-6400 includes a Form C dry contact relay that can signal a control panel or building management system.
Is this code compliant for fire exits?
The Exit Stopper is designed not to restrict egress and is commonly installed on fire doors. Always confirm with the local AHJ for code compliance.
How often should I replace the battery?
Typical 9V battery life is 6–12 months depending on usage. We recommend checking during routine maintenance or alarm inspections.
Are there color options?
Yes. Red and green models are available. Green is often used for compliance in jurisdictions that require green for emergency exit-related devices.
Technical Summary
-
Model: STI-6400 Exit Stopper
-
Alarm Output: 95 or 105 dB (user-selectable)
-
Power Supply: 9V alkaline battery (included); optional 12-24VDC wired version
-
Tamper Switch: Built-in reed switch and tamper detection
-
Relay Output: Form C dry contacts for remote monitoring
-
Material: Tough polycarbonate housing—same used in protective gear
-
Dimensions: 5.375″ H × 5.375″ W × 2″ D
-
Environment: Indoor standard; outdoor weatherproof models available
-
Mounting: Surface mount over existing door hardware, or wall/door frame
-
Certifications: UL Listed, ADA compliant, RoHS
-
Accessories: Remote horn, replacement covers, conduit kits, and backboxes available
Partner with SESP for Your STI Installations
Southeast Security Products represents Safety Technology International (STI) and other best-in-class manufacturers across the Southeast U.S., offering hands-on support, product expertise, and dealer-focused programs to help you grow your business. Whether you’re building your first smart home package, upgrading to next-gen connectivity, or integrating high-performance technology into a larger security system, we can help you select the right solutions to power your installations. Contact us today for pricing, training, or to request a demo of the STI-6400 Exit Stopper.
Visit sesproducts.com or reach out to learn more about how we can support your next project.
