MadisonSensor is a leader in the design, engineering, and U.S. manufacturing of engineered fluid sensing solutions for a wide range of real-world applications. Our products range from liquid level and flow sensors and switches to technologically complex assemblies, all built for reliable performance in demanding environments.
We partner closely with customers to deliver solutions that meet specific application requirements, whether through proven stock products or custom-engineered components and systems. Our consultative approach, advanced engineering expertise, and highly regarded personal service help customers move efficiently from concept to production.
Every MadisonSensor solution is designed with the application in mind. By combining deep application knowledge, disciplined engineering, and consistent manufacturing quality, we support fast time to market, dependable delivery, and long-term reliability. Customers rely on MadisonSensor not just as a supplier, but as a trusted engineering partner.
MadisonSensor products serve industries including chemical processing, data centers, food and beverage, fuel and oil, HVAC & R, marine, medical, transportation, and more. You can install MadisonSensor solutions with confidence, because they are engineered to perform.


