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Due to Component and Supply Shortages World Wide Due to Component and Supply Shortages World Wide
STI 6400 Exit Door Alarm, Exit Stopper
Includes 2 keys, a tamper-proof wrench
and a 9-VDC alkaline battery.

STI 6400 Exit Door Alarm, Exit Stopper

Manufacturer Part#:STI-6400
Our Part#:STI-6400
Stock Status: Call for Availability
Retail Price:$120.51
Your Savings:$39.92(33%)
Your Price:$80.59









Feature 5



Highly effective, alarm alerts you to any unauthorized exits/entries through emergency exit doors and rear doors. Serves as an inexpensive security device and helps stop theft as well. If the protected door is opened, the electronic Exit Stopper emits an ear piercing alarm for 30 seconds, three minutes or continuously (as preset by the user). A key operated override will silence the alarm and allow authorized exits. Exit Stopper is fitted with a long life alkaline battery and features a low battery warning facility. It is available in red or green for almost any type of door, mounting or installation.


  • Highly visible "stop sign" design acts as a deterrent.
  • Sounds a powerful 105 dB warning horn when activated, drawing attention in a hurry (95 dB low volume setting can be set if desired).
  • Virtually indestructible polycarbonate housing.
  • Upon installation, user can select whether to use as an alarm or annunciator.
  • In exit alarm mode, can be set to sound for 30 seconds, 3 minutes or indefinitely (unless disarmed with key supplied or until battery is drained).
  • May be programmed for 15-second entry delay or immediate alarm.
  • In annunciation mode, alarm announces door entry with a set of 10 beeps.
  • Exit delay allow unit to arm following authorized exits.
  • Unit is completely self-contained.
  • May be mounted on top, right, left or next to almost any door.
  • Detects both unauthorized exits and entries.
  • Easy to install.
  • Less expensive than heavy horizontal bar type units.
  • Practical for all emergency doors.
  • Compact patented design 5 in. (127mm) in diameter and 1.875 in. (48mm) deep.
  • Also available in green housing to comply with newer standards (STI 6400-G).
  • 9-VDC alkaline battery is provided.
  • Recommended operating temperature 32F to 120F (0C to 49C).
  • Lifetime guarantee against breakage of polycarbonate housing in normal use (one year on electronic components).
Note: End user must verify the alarm and battery every six months and replace battery annually or as required.

Product Video

Everything you need to know about the STI-6400 Exit Door Alarm

5 Stars
Good product
We received the alarm, and it was installed with ease. Very good product! Thank you
Did you find this helpful?  17 of 19 Found Helpful
Reviewed by:  from Florida. on 2/28/2011

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