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Tel-Instrument will continue to help and support our valued customers through the life of the product. The Tel-Instrument Technical Support Department is dedicated to ensuring that our customers receive courteous, timely and accurate answers to their questions or needs. We will ensure that you understand how to use our equipment and properly interpret the results. If you need help understanding how a test is performed, or the results of tests, please contact us at any time, we are there to help you.

Our Support Engineers are extremely well versed in Avionics and Avionic Test Systems. With well over 100+ years of experience in the Avionics Industry, most with military backgrounds, our Technical Staff will provide the most up to date information and assistance if the need arises.

Contact our Product Support Team by calling us between the hours of 8:00 AM to 4:00 PM EST Monday through Friday!

or Fill Out the EMAIL Contact to the Left!


Tel-Instrument can provide both On-Site and Off-Site hands on training for our customers. This training will include basic Avionics system theory, a discussion of the product and actual testing on the customer aircraft. This Hands-on training can provide the owners with a excellent base of knowledge and understanding focused on their particular needs and requirements.

At this time On-Line Training is not available but we would be glad to discuss your individual needs.

Technical Manualsand Service Bulletins

We hope you like our new Web-Site Portal; Tel-instrument is making daily updates to add new Content. Most of our Commercial Manuals and Service Bulletins are available as a download in PDF Format. We will be adding these quickly.

Military Manuals can not be downloaded and you must contact Tel-Instrument Support Department directly for these manuals or documents. Please check back often as we continue to add new content free and available to our customers.


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