Sti release a newly redesigned exit stopper door alarm on april 2018. is this the newer version?

The newer version STI-6400 2018 to current will have a red table of 8 switches, older models have switches labelled JP

Simple, just mount the magnet on the door frame and the main unit onto the doo. When properly mounted and key switch is turned on, the opening of the door will pull the unit away from the magnet that then releases the internal read switch causing the siren to alert. MOUNTINGH: Close the door then mount the magnet on the inside door frame at the opposite side of the hinges (opening). Depending on the conditions, locate the magnet either at the top or side of the door frame near the door's surface but do allow a slight distance from the actual door surface so that it doesn't stop the door from closing. Once it is mounted you will mount the main unit onto the actual door putting the read switch side of the unit so it is very close and lined-up evenly with the top of the magnet's surface. You will need to disassemble the unit so as to mount the unit to the door as well as to insert or change the battery. There are two types of keys for this unit, the metal type key has a fork end on it that fits into the screw head that holds unit together. The gold keys (two) are used to turn on or shut off the unit. You will need to have this gold key available to turn-off the unit or to turn on the unit.

Alarm goes off even when key is off. What am I doing wrong?

Thank you for reaching out to STI. Unit should not sound after key has been turned to the horizontal "off" position. If this is happening you may want to check the key switch wires are still in the key switch terminal. For further discussion on this please contact me direct Tasha/STI Tech Support/ 800-888-4784 x213. Best Regards.

Can I order extra keys? We use these in a dorm each summer for a camp and we have lost ours.

I had to order a new one to get the key.

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STI Safety Technology International, Inc. -6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits or Entries Through Emergency Doors

Product ID: 287879057

Details

Battery description
Alkaline
Brand
STI
Colour
Red
Power source
Battery
Product dimensions
17.3L x 6.9W x

🔊105 dB piercing alarm

🔋Long-life 9V alkaline battery

🛡️Virtually indestructible polycarbonate

₩268760

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Description

🚪 Stop intruders before they step in — security that speaks volumes!

RUGGED RELIABLE - Built with virtually indestructible polycarbonate housing backed by a 3-year breakage guarantee.
FLEXIBLE ALARM MODES - Choose from 30 seconds, 3 minutes, continuous, or annunciator beep settings for tailored security.
UNMISSABLE DETERRENT - Bold stop sign design that commands attention and prevents unauthorized access.
POWERFUL 105 D B ALARM - Instantly alerts with an ear-piercing horn to stop intrusions in their tracks.
EFFORTLESS INSTALLATION - Self-contained, battery-powered unit mounts easily on almost any door orientation.

The STI 6400 Exit Stopper is a multifunction door alarm designed to prevent unauthorized exits and entries through emergency doors. Featuring a highly visible stop sign design, a powerful 105 dB alarm, and multiple alarm duration settings, it offers customizable security. Its virtually indestructible polycarbonate housing ensures durability, backed by a 3-year guarantee. Battery-powered with a long-life 9V alkaline battery included, it installs easily on nearly any door, making it a trusted choice for professional-grade access control.

Specifications

ASIN	B0006AZDII
Audible Noise	105 Decibels
Battery Description	Alkaline
Battery description	Alkaline
Best Sellers Rank	#37,594 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #43 in Home Alarm Systems
Brand	STI
Built-In Media	9V Battery, Door Alarm, Reed/Magnet
Color	Red
Colour	Red
Control Method	Touch
Country of Origin	China
Customer Reviews	4.6 out of 5 stars 504 Reviews
EU Spare Part Availability Duration	3 Years
Global Trade Identification Number	00662950640004
Item Dimensions L x W x H	17.3L x 6.9W x 1H centimeters
Item Type Name	Door Alarm
Manufacturer	Safety Technology Intl
Mfr Part Number	STI-6400
Model Number	STI-6400
Mounting Type	Door Mount
Number of Batteries	1 9V batteries required. (included)
Number of Items	1
Number of Packs	1
Number of batteries	1 9V batteries required. (included)
Power Source	Battery Powered
Power source	Battery Powered
Product dimensions	17.3L x 6.9W x 1H centimeters
Sensor Technology	Contact Sensor
Size	1 Pack
UPC	662950640011 737214686613 662950640004
Unit Count	1 Count
Voltage	9 Volts

Reviews

S**H

Good Quality Product

17.01.2026

J**T

Sold as advertised A+

18.03.2024

S**C

Great item

We have had issues with our emergency exit doors being left unsecured/not closed completely. These have fixed that issue... as you cannot ignore the LOUD alarm if it is not closed.

19.07.2024

R**A

الجودة

التوصيل كان سريع والشحنة مناسبة للعمل وذات جودة ممتازه

8.09.2025

R**N

Excellent!

Exactly what I wanted. Can't buy a better door alarm for this price level. Was easy to install and works perfectly. Lots of adjustable options. Works well for restaurant emergency exit door.

22.03.2023

J**R

Muy útil

5.12.2019

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₩268760

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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