
When Only The Best Will Do
HSI Sensing has been meeting the unique challenges of aerospace sensors for more than 50 years, providing mission-critical solutions for everything from seat belt connections and shock sensing to fluid level monitoring and wing positioning. Our outstandingly reliable products can handle millions of cycles in applications and hermetically sealed switches ensure safety no matter where they are applied. In fact, our sensors are so precise that we can detect 1/100 of an inch of movement to individual degrees of rotation.
Our AS 9100D and ISO 9001:2015 certification ensures that when we take on your aerospace project, you can be confident in our credentials.
Aerospace Applications
- Commercial and Military Jet Engines
- Space Station Equipment
- Security Systems
- Wing Flaps Extension and Retraction
- Missile Safety System Signal
- Latched Seat Belts
Fuel Vapor Sensor
- Hatch Closure
- Space Station Equipment Pod Position
Throttle Body Position
Pressure Differentiator Position
Astronaut and Athletic Body Temperature Pill
Aerospace Certified Door Sensors
Pilot Seat Ejection
Homing Beacon Activation
Space Shuttle Cargo Bay Sensor Monitors
Reserve Tank Oil Levels
Top Products for Aerospace Applications
Since 1968 HSI Sensing, an AS 9100D and ISO 9001:2015 registered company, has been the premier choice for custom and standard reed switches, proximity sensors, and other sensing technologies for the aerospace industry.

HSR-069R
Form A Miniature Reed Switch

HSR-520R
Form C Miniature Reed Switch

HSR-900R
Form A Miniature High Voltage Reed Switch

HSR-004R
Form A Micro Miniature Reed Switch
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