Dose it come with the key?

Our STI-6400 comes with 2 KIT-H19032 alarm keys (2341) and 2 KIT-H19016 service screw key

How do you shut off the short loud signal every minute or two that is obnoxious and assume is meant to indicate battery working?

That could indicate you have a low battery. Shut-off the unit and then replace the internal 9V battery. Then you can turn the unit back on and the indicator should go away. If you need instructions on how to do this let visit our website and you can access the installation sheet. Or email us at sales@sti-usa.com.

If the door is opened in an emergency do the wires break away and if so can they be placed back?

The STI-6402 goes into alarm after given it's NC simulation. With the STI-6402 there will be (1) reed on board wired into the RS1 for the second door you will attach the additional reed in the hardware pack into the RS2. Each door will need to have the extra magnet along side each reed (wired magnet) and when they separate it goes into alarm. There is no disconnection of wires - visit this link to view it's install https://www.sti-usa.com/wp-content/uploads/6400Install.pdf. For more information you can reach out to STI tech support, support@sti-usa.com.

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Safety Technology International, Inc. STI-6402 105 dB Exit Stopper® Multifunction Door Alarm for Double Doors with on/Off Switch and 9 Volt Battery, red

Safety Technology International, Inc. STI-6402 105 dB Exit Stopper® Multifunction Door Alarm for Double Doors with on/Off Switch and 9 Volt Battery, red

Product ID: 5007137

Details

Battery Description
Alkaline
Brand
STI
Color
red
Power Source
Battery
Product Dimensions
5.38"L x x 2"H

🔊105 dB piercing alarm

🔋9V long-life alkaline battery

🚪Double door reed switch sensor

€ 184.55

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Description

🚨 Stop thieves before they step in — the Exit Stopper means business!

UNMATCHED AUDIBLE SECURITY - 105 dB alarm ensures no unauthorized exit goes unnoticed, creating an instant deterrent.
SMART MULTI MODE ALERT SYSTEM - Choose from 30 seconds, 3 minutes, continuous alarm, or annunciator beep mode for tailored security.
COMPLETE SECURITY KIT INCLUDED - All mounting hardware, tamper-proof screws, activation keys, and battery included for immediate setup.
ROBUST WEATHER RESISTANT BUILD - UV-stabilized polycarbonate housing withstands sun exposure, perfect for varied environments.
EFFORTLESS INSTALLATION VERSATILITY - Compact 5-inch diameter design mounts easily on any door orientation—top, side, or adjacent.

The STI-6402 Exit Stopper is a high-decibel multifunction door alarm designed for double doors, delivering a powerful 105 dB alert to unauthorized entries or exits. Featuring a versatile mounting system, long-life 9V battery, and multiple alarm modes, it combines rugged UV-stabilized construction with user-friendly installation. Ideal for professional spaces seeking reliable, visible, and immediate security reinforcement.

Specifications

ASIN	B0015Q7XQM
Audible Noise	105 db
Battery Description	Alkaline
Best Sellers Rank	#297 in Home Security Systems
Brand	STI
Built-In Media	Mounting Screws (12)^Tamper Wrench^9V battery^Reed Switch(2)^Magnet(2)^Tamperproof Screw^Key Ring^Activation Key (2)^Door Alarmed label^Anchors (12)^Spacers (8)^Door alarm unit^Installation instructions
Color	red
Control Method	Touch
Customer Reviews	4.6 4.6 out of 5 stars (134)
Global Trade Identification Number	00662950640202
Item Dimensions L x W x H	5.38"L x 5.38"W x 2"H
Item Weight	12.8 ounces
Manufacturer	Safety Technology International, Inc
Mfr Part Number	6402
Model Number	STI-6402
Mounting Type	Door Mount
Number of Batteries	1 9V batteries required. (included)
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Sensor Technology	Contact Sensor
Size	5 inches diameter x 1.875 inches depth
UPC	662950640202
Unit Count	1 Count
Voltage	9 volts

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€ 184.55

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered 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 Cyprus.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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