High Performance Products
We are the catalyst that helps drive innovation in any and every industry by helping to transform mechanical motion into electrical signals.
Top Industry Applications
From implantable medical devices to oil field robust fluid controls and even the aerospace industry, at HSI Sensing, we have perfected our reed switch and sensor technology, ensuring reliable and consistent operations in any application.
High Security Door Contacts and Proximity Sensors
UL 634 L2
High Security SensorsAS 9100D and ISO 9001:2015 Certified Manufacturer
AEROSPACE
Micro Miniature SwitchesMedical Ready Pick-and-Place Capable Reed Switches
HSR-0025R
World's Smallest Reed SwitchHigh Security Door Contacts and Proximity Sensors
UL 634 L2
High Security SensorsAS 9100D and ISO 9001:2015 Certified Manufacturer
AEROSPACE
Micro Miniature SwitchesMedical Ready Pick-and-Place Capable Reed Switches
HSR-0025R
World's Smallest Reed SwitchTrusted In Hazardous Environments
Form C
World's Most Powerful Reed SwitchSometimes, only a custom solution will do.
The HSI Engineering and Design Team is available to design a sensor or switch to meet your exact specifications. And, while all custom projects have different requirements, consider our 6 points below to help you define the initial needs of your custom project.

HSI Sensing Wins at the 2019 SIA New Product Showcase
Sentinel Retro – PRX+12215
Intrusion Detection and Prevention Solutions
Let’s Make Things Happen
Simply reach out to connect with us. We’ll discuss your project and provide solutions, unique to your specific needs.
“We are constantly looking to reimagine the way we use sensor technology in our everyday lives. Whether our engineers are looking at a chemical processing plant, a fighter jet or a pinball machine, we are imagining the way that we can use our products to make those technologies better.”
Ryan Posey
HSI Sensing, CEO