STI Exit Stopper® Series – Mul...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$89.73

STI Exit Stopper® Series – Multifunction Door Alarm

(No reviews yet) Write a Review

Model: STI-6400
$89.73

In Stock (leaves warehouse same day if ordered before 3pm ET)

$89.73
Adding to cart… The item has been added
Free Shipping on orders over $99
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

STI Exit Stopper® Series – Multifunction Door Alarm

The STI Exit Stopper® Series is a highly effective and affordable security device designed to alert you to unauthorized exits or entries through emergency exit doors. When activated, the unit emits a 95 dB or 105 dB warning horn and flashes to deter theft and unauthorized use, helping protect inventory, assets, and property.

Made with a virtually indestructible polycarbonate housing, the Exit Stopper® can be mounted on nearly any door. It can be programmed as an alarm or annunciator, includes a key override for authorized use, and is available in several models for single doors, double doors, and remote horn installations.

Key Features

  • Alerts to unauthorized exits or entries through emergency exit or rear doors.
  • Loud 95 or 105 dB alarm with flashing visual alert.
  • Can be programmed as an alarm or annunciator.
  • Arming delay allows time for authorized exits before the alarm activates.
  • Trip delay option for immediate or delayed alarm triggering.
  • User-selectable alarm duration: 30 seconds, 3 minutes, or continuous.
  • Low battery warning beep and flash; extended battery life mode.
  • Key-operated override for authorized access (always-active version also available).
  • Polycarbonate housing with 3-year guarantee against breakage.
  • Easy to install and far less expensive than heavy horizontal bar systems.

 

Manufacturer Resources

Product Specs

Accessories:
Remote horn kit, tamper wrench, labels, replacement keys and siren
Alarm Duration:
30 seconds, 3 minutes, or continuous
Alarm Volume:
95 dB or 105 dB
Certifications:
CE Approved
Material:
Clear UV-Stabilized Polycarbonate
Modes:
Alarm or Annunciator
Mounting Options:
Single Door, Double Door, Remote Horn
Parent SKU:
STI-EXIT-STOPPER-SERIES
Power Source:
9 VDC Battery (included), 12-24 VDC input
Product Line:
STI Exit Stopper® Series
Warranty:
3-Year Polycarbonate; 1-Year Electronic Components
Applications:
Emergency exit doors, rear doors, inventory protection
Product Group:
Safety
Product Subgroup:
Stopper Devices
Product Type:
Exit Stopper® Series – Multifunction Door Alarm

Parts & Accessories

    Safety Technology International STI-6400 – Frequently Asked Questions

    How fast can I get the Safety Technology International STI-6400 delivered?
    Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
    Can I return it if it doesn’t work for me?
    Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
    Does the Safety Technology International STI-6400 come with a warranty?
    Absolutely. The Safety Technology International STI-6400 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
    How do I get technical support or installation help for the Safety Technology International STI-6400?
    You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
    Why buy the Safety Technology International STI-6400 from ZenSupply?
    ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.