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FREE SHIPPING on ALL online orders! Use promo code: FREESHIP

In celebration of the new Markertek website, we are offering Free Ground Shipping on all orders placed on our website now through October 26, 2014*. Just check the 'I have a coupon code' box in the Payment Information section during checkout and enter FREESHIP.

*Offer only valid for items shipping in the 48 contiguous United States.
*Some restrictions apply on freight intensive items. You will be notified within 24 hours if this applies to your order. Offer applies to orders placed on our website only.

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  • Toll Free: 800-522-2025
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    International: 845-246-3036
    Fax:: 845-246-1757

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    Monday - Friday

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      NTI AG is a leading manufacturer of test instruments for the professional audio industry, broadcast market and telecommunication. Turnkey production line test systems for speakers, microphones and mobile phones are supplied to worldwide customers.

      NTI's heritage includes over 30 years of experience in designing high precision audio test equipment, including the classic and popular AudioTracer & AudioGraph series; portable and bench-top audio analyzers such as the A1, the A2 and the A2D dual domain model; the Rapid-Test Series production line analyzers consisting of the RT-2M and RT-2X, as well as signal generators and minstruments. Markertek is pleased to bring you NTI's line of quality products.

      Markertek is an authorized dealer for the entire NTI Americas line. If you don't see what you're looking for, contact us and we'll do our best to get it for you.