Extend the functionality of your Madison products with panel meters, relays and more.

Application Bulletins

Learn how Madison products have been used in a variety of real-world applications.


Many Madison products meet the guidelines of UL, NSF, CE, CSA and other common standards.

Chemical Compatibility

Better understand how sensor materials will react to your application environment.

Frequently Asked Questions

Get answers to common technical questions about our sensors.

How To Buy

Madison Company offers several convenient ways to purchase our liquid level management products.

Image Gallery

Choose the correct product at a glance, and download high-resolution images (requires account.)

ISO Certification

Madison Company is ISO 9001:2015 certified.

Product Configurator

Create a custom level management switch with our online tool (opens in new window.)

Product Specification Worksheets

Submit a spec sheet from your browser, or download a .pdf version.

Specification Worksheet  Downloadable .pdf
Full-Size Multi-Point Full-Size Multi-Point
Miniature Multi-Point Miniature Multi-Point
Continuous Float Level Sensor Continuous Float Level Sensor
Hydrostatic Pressure Level Sensors Hydrostatic Pressure Level Sensors
Optical Liquid Level Switches Optical Liquid Level Switches
Radar and Ultrasonic Sensors Radar and Ultrasonic Sensors
Visual Level Sensors Visual Level Sensors

California Proposition 65

Product Support

Download installation manuals, our product catalog and other information.

Sensor Decision Tree

Select the right sensor in a few clicks with this straightforward org chart utility.

Sensor Reference Information