Safety Technology International STI-6402


Exit Stopper Multifunction Door Alarm for Double Door, Red

Availability: In Stock

  • Factory New
Brand: Safety Technology International Part #: 2139 Category: Manufacturer Part #: STI-6402


The highly effective Exit Stopper can serve as an inexpensive security device and help stop theft by alerting you to any unauthorized exits or entries through emergency exit doors. If the protected door is opened, the electronic Exit Stopper emits an ear piercing alarm for 30 seconds, 3 minutes or continuously (as preset by the user). A key operated override will silence the alarm and allow authorized exits. The unit can be set for a 15 second delay before arming or tripping. Exit Stopper “Always Active” allows the key holder to reset the alarm, but does not allow the alarm to be turned off. Exit Stopper is fitted with a 9 VDC alkaline battery. It is available in red or green for almost any type of door, mounting or installation, including remote placement of the alarm (not for outdoor use).


Weight 1.00 lbs



Safety Technology International

Production Status



  • Complete with double reed switch assembly to monitor double doors.
  • Highly visible “stop sign” design acts as a deterrent.
  • Unit is completely self-contained and easy to install.
  • Sounds a powerful 105 dB warning horn when activated, drawing attention in a hurry (95 dB low volume setting can be selected if desired).
  • Upon installation, user can select whether to use as an alarm or annunciator.
  • Alarm mode can be set to sound for 30 seconds, 3 minutes or indefinitely (unless disarmed with key supplied or until battery is drained).
  • In annunciation mode, alarm announces door entry with a set of 10 beeps.
  • May be programmed for 30-second entry/exit delay or immediate trip.