STI - Support

Phone Support (8:30 - 5:00 ET): 
248-673-9898 • Toll Free: 800-888-4784

E-mail based support:

Technical Data Sheets, Installation Sheets and other helpful information available on the STI Download Page.

Can't find the product you need? Click here to submit a product challenge for STI.


Return Authorization must be obtained before acceptance of any returned merchandise. After reading our policy, use our online request form below.

Notes About Returned Merchandise:

All merchandise must be returned in its original packaging along with all accessories. Any products returned for credit that need repackaging, replacement accessories, etc. will be charged for the replacement box(es), label(s) and/or accessories. We cannot accept altered or marked products for credit. Merchandise received by STI without an RA will be held for processing until it is determined the return was made for justifiable reasons. All shipping, handling and return costs will be the responsibility of the shipping party.

Our Restocking Policy is detailed below. Fees will be issued per these guidelines unless prior written agreement is authorized at time RA number was originally given. Return merchandise promptly. Merchandise received after the RA expires may be subject to increased restock fees calculated from the date of invoice.

  • All Custom orders, including but not limited to "SS" series items, custom label covers, Wireless Alert Series, large wire guard series and environmental cabinet series, will be assessed a mandatory minimum 15% fee.
  • Custom Label, drop ship and expedite charges are nonrefundable.
  • 15% fee on all products 31-60 days from date of invoice.
  • 30% fee on all products 61-90 days from date of invoice.
  • 50% fee on all products 91-180 days from date of invoice (credit on account only).
  • STI cannot accept items over 180 days (6 months) old unless defective and covered under warranty (warranty replacement only).

Please allow up to 3 weeks for processing of your returned shipment. Questions about your return? E-mail:
Do not take any credit in advance – this will delay the process and jeopardize your account status.

Return Authorization Number (RA) Request Form

Please use the form below to obtain an authorization number. Please submit one form for each PO or Invoice. Once this form is submitted, you will receive a PDF RA via email with instructions for return. Please be advised that fees may apply to your return.

*If you purchased through one of our authorized distributors, please contact them for return instructions*

Why are you returning the product?
If Product Defect is the reason for an RA, please fully explain the problem below:  
Original Reference number for product purchased from STI
(select)                                              (enter number)

(part number)                                    (quantity)
Enter any comments in the space provided below:  
Tell us how to get in touch with you: ( * required information)  
Name *  
E-mail *  
Company *  
Address 1  
Address 2  
Zip Code  
Tel *  
* I have read, understand and agree to STI's Return Policy including fees.


Did you know?

At least 522 lives can be saved annually in the US & Canada by the placement of AEDs - Science Daily (Nov. 7, 2007)

Is Your AED Ready?


STI Products Work!
Thanks to our STI–6400 (Exit Stopper), the number of visitors trying to exit out of our fire door has dropped by about 90%.

Director of Facilities
Detroit Science Center

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