Founded in 1982, APC, formerly known as Air Products & Controls, is a duct detector and accessories manufacturer specializing in life safety. Nothing is more important to us than ensuring safety of people in their homes, offices, and facilities. As a leading manufacturer of duct detectors for smoke and carbon monoxide, specialty controls, low voltage relays, and control relays, we’re proud to deliver quality products that ensure the building occupants’ safety.

With nearly 40 years of experience in the industry, we bring a tested, trusted, and proven team to the table. From product development to testing and quality assurance, our entire team remains poised to deliver exceptional products that set the standard and then raise the standard years later down the line.

We work with some of the most trusted names in HVAC and fire protection. Whether we’re built into your rooftop unit by one of our partners, or you’re installing APC on your next project you know the quality and reliability you’re getting into.

Our Mission

Here at APC, our mission is simple – we want to save lives, protect livelihoods, and ensure that every HVAC system has the proper safeguards in place to keep a building’s occupants safe at every moment. Thanks to our systems and components, we contribute to protecting millions of lives every day. Our top-quality products are found worldwide in HVAC and life safety applications. And every step of the way, our team is testing, verifying, and ensuring our products’ integrity because when your life is on the line, we want to be the company you trust.

Our Capabilities

APC is proud to be a Michigan based manufacture in metro-Detroit. American made is not just a marketing slogan – the passion of our assemblers drive the quality and reliability. With passion, knowledge, and dedication, APC works to prevent the spread of smoke within HVAC systems in residential, commercial, and industrial buildings nationwide and throughout the world.

Our Vision

We like to envision ourselves as more than a manufacturing company. We simply see it as our duty to use our expertise, passion, and innovation level to keep people safe in their buildings. The world can be an unpredictable place, so when you step foot into a building with APC components, we want you to rest assured knowing that a team of qualified professionals put their great minds to work to keep you safe.

You know what to expect with APC – safety, quality, and innovation.

APC - Model 7-CO -CO Replacement Head