Established in 1988, Apex Instruments manufactures equipment for sampling emissions from industrial chimneys and smoke stacks using US-EPA guidelines. Located in Fuquay Varina, N.C., the company provides testing consoles, probes, pitots, umbilicals, glassware, filters and much more. Apex Instruments also offers customizable equipment for isokinetic, gas and particulate sampling. The company's products list includes CEM equipment, gas sampling, flow, pressure/temperature, mercury sampling solutions and accessories, among others. Apex Instruments has affiliation with the Air and Waste Management Association (AWMA), Carolinas Air Pollution Control Association (CAPCA), Electric Power Research Institute (EPRI) and Electric Utilities Environmental Conference (EUEC).