Welcome to Apex Instruments!

Dear valued customer,Bill's Mug

Over the last 25 years, it’s been our mission to bring high-quality equipment to the source testing industry at competitive prices.

This commitment has driven us to continually improve our products and develop solutions for our customers to compete in an ever-changing regulatory landscape.

I’d like to take this opportunity to thank all our customers for their support and let you know that the entire Apex Instruments team looks forward to our continued partnership by providing innovative products and exceptional service for many years to come.

Bill's Signature

William H. Howe
Apex Instruments

Apex Instruments was established in 1988 as an American-owned company with a worldwide impact. For more than 25 years, Apex Instruments has manufactured equipment for sampling emissions from industrial chimneys and smokestacks using U.S. EPA guidelines. Our equipment is designed by a staff of experienced stack testers who understand your compliance testing needs.

Apex provides testing consoles, probes, pitots, umbilicals, glassware, filters, and much more. We are innovators in engineering equipment that is versatile and easy to use and can design and fabricate customized equipment for isokinetic gas and particulate sampling.

We have always been directly involved with the environmental industry, working close with the U.S. EPA. When the Clean Air Act was established in 1990 and hazardous air pollutants were identified for control, Apex Instruments was at the forefront of product design, method evaluation and implementation.

Our friendly and professional staff are always ready to provide technical support to our customers. Please feel free to contact them at any time for answers to your questions or to place an order. Development and improvements of Apex Instruments equipment is influenced by valuable feedback and suggestions from customers. We encourage customer input and ideas. Our goal is to form tight-knit and long-lasting relationships with our customers by providing the best support and equipment for your needs.

Contact Apex Instruments today to see how we can be of service to you for your stack testing equipment needs with quality, innovation, and competitive prices.

 204 Technology Park LaneApex Instruments
Fuquay Varina, NC 27526
(919)557-7300 or 1(800)882-3214


Typical industries and sources tested using Apex Instruments equipment:

  • Acid plants
  • Asphalt plants
  • Boilers
  • Cement plants
  • Chemical manufacturing
  • Furnaces
  • Incinerators
  • Municipal waste combustors
  • Petroleum refineries
  • Power plants
  • Pulp and paper mills
  • Smelters
  • Steel mills