KIT-6403 Remote Horn Unit for ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$65.74
KIT-6403 Remote Horn Unit for STI-6400 series

KIT-6403 Remote Horn Unit for STI-6400 series

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Model: KIT-6403

In Stock (leaves warehouse same day if ordered before 3pm ET)

$65.74
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The KIT-6403 Remote Horn Unit is designed for the STI-6400 series. This unit is included with STI-6403 and provides a reliable horn function for the system.

Manufacturer Resources

Product Specs

Included With:
STI-6403
Product Category:
Parts & Accessories
Product Group:
Safety
Product Subgroup:
Parts & Accessories
Product Type:
KIT-6403 Remote Horn Unit for -6400 series
Series:
STI-6400 series
Product Function:
Provides horn function for STI-6400 series
Product Details:
Remote Horn Unit
Department:
Safety

Safety Technology International KIT-6403 – Frequently Asked Questions

1) Do I need to buy the KIT-6403 separately if I already ordered an STI-6403?
No. The remote horn unit comes included with the STI-6403, so buying it again only makes sense if you need a spare or a replacement for a damaged one.
2) What does the STI KIT-6403 remote horn unit actually do?
The KIT-6403 is a remote horn unit for the STI-6400 series. It supplies the audible horn function for that system, mounted away from the main unit so the sound can be placed where people will hear it rather than at the device itself.
3) Will the KIT-6403 horn work with other STI-6400 series units?
The KIT-6403 is built for the STI-6400 series, so it pairs with units in that family. It ships as part of the STI-6403 specifically, so if you are adding a horn to a different 6400 series unit, confirm that unit is configured to drive a remote horn.
4) Is the KIT-6403 a complete alarm or just the sounder?
Just the sounder. It is a horn unit only, an accessory to an STI-6400 series system, not a standalone alarm. You still need the 6400 series unit itself for the detection and control side.
5) I manage a building with several STI-6400 series units. Can I order KIT-6403 horns as replacements?
Yes. The KIT-6403 is sold as a single model, so it works as a like-for-like replacement horn for STI-6400 series installations where the original remote horn has failed or been damaged.
How fast can I get the Safety Technology International KIT-6403 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Safety Technology International KIT-6403 come with a warranty?
Absolutely. The Safety Technology International KIT-6403 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Safety Technology International KIT-6403?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Safety Technology International KIT-6403 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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