APT provides AC Sources, Frequency Converters, and Variable Transformers for industries including the militaryaviation, manufacturing, and test & measurement.

We pride ourselves on providing you with the best service in the industry. When you choose APT, you’re choosing a partner that will continue to help you for the life of your product, no matter what the application.
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Customer Happiness Guarantee
We are dedicated to ensuring you are completely satisfied throughout your entire purchasing experience with us. From selecting the right product for your application to support and training, we guarantee your experience will be nothing less than excellent.
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3 Year Standard Warranty
All APT instruments include a 3 year standard warranty. This guarantees your new APT AC Power Source to be free from defects in workmanship for up to 3 years from the date of shipment. There are no additional costs to you for this warranty and no requirements for calibration or inspection.
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10 Business Day Guaranteed Shipping
Every standard APT power source ships from our factory within 10 business day or we pay the freight.
2 or 3 Day Turnaround
Speedy Turnaround On Calibration And Repairs
We offer 2 Day turnarounds on Calibrations. If your instrument needs service for any reason, we guarantee to have it repaired and shipped out of our facility within 3 business days of receiving it.

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We are committed to responsible manufacturing processes and environmental sustainability. Our Green Initiative is led by individuals throughout our organization who are committed to making day-to-day operations as green as possible.

  • We have a ZERO landfill policy for all out-of-service instruments, including all components and materials. All materials are 100% recycled.
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