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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🚨 Stay one step ahead with the STI-6402’s unstoppable door defense!

DISCREET YET POWERFUL - Compact 5-inch diameter design blends seamlessly with your door
FLEXIBLE INSTALLATION - Mounts on top, side, or next to almost any double door
PLUG PLAY PROTECTION - Self-contained unit with included 9V battery for instant setup
CONTROL AT YOUR FINGERTIPS - Easy on/off switch for quick activation and peace of mind
UNMATCHED AUDIBLE SECURITY - 105 dB alarm ensures no unauthorized exit goes unnoticed

The Safety Technology International STI-6402 is a compact, self-contained multifunction door alarm designed for double doors. It delivers a powerful 105 dB alert to deter unauthorized entry or exit, powered by an included 9V battery. With versatile mounting options and a simple on/off switch, it offers professional-grade security that’s easy to install and operate.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

A$358

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Australiastore

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Number of Batteries	1 9V batteries required. (included)
Voltage	9 Volts
Control Method	Touch
Noise Level	105 Decibels
Mounting Type	Door Mount
Sensor Technology	Electronic
UPC	662950640202
Global Trade Identification Number	00662950640202
Manufacturer	Safety Technology International, Inc
Model	STI-6402
Product Dimensions	13.65 x 13.65 x 5.08 cm; 362.87 g
Batteries	1 9V batteries required. (included)
Item model number	STI-6402
Batteries Included	Yes
Batteries Required	Yes
Country of Origin	USA
Item Weight	363 g

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

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