RTD Thermocouples
Available with single or dual sensing elements and 2-wire, 3-wire, or 4-wire configurations, SFMS's RTDs can be tailored to meet specific aircraft and system requirements. Applications include bleed air systems, hydraulic fluid monitoring, and fuel temperature sensing.

Product Details
AMETEK Sensors & Fluid Management Systems (SFMS) designs and manufactures high-accuracy Resistance Temperature Detector (RTD) sensors for aerospace engine, airframe, fuel, hydraulic, bleed air, and environmental control applications. Built around proven sensing technology, our RTDs deliver precise temperature measurement, exceptional long-term stability, and reliable operation in some of the harshest aerospace environments.
With more than six decades of aerospace sensing experience, AMETEK RTD sensors are engineered to withstand vibration, thermal cycling, icing, lightning, foreign object damage, and other demanding environmental conditions. Every design is developed with a focus on accuracy, durability, and lifecycle performance to support critical aircraft systems throughout their operational life for precise temperature measurement across critical aerospace systems.
- Proven performance in engine, bleed air, fuel, hydraulic, and environmental control applications.
- Designed and tested to withstand vibration, icing, thermal, lightning, and environmental exposure conditions.
- Available in custom configurations including 2-wire, 3-wire, and 4-wire designs with single or dual sensing elements.
AMETEK RTD sensors are deployed across commercial, military, and business aviation platforms, supporting applications ranging from compressor inlet and air temperature measurements to hydraulic fluid monitoring and bleed air temperature sensing. Our RTD technology provides outstanding channel-to-channel correlation, excellent repeatability, and reduced manufacturing variability compared to traditional wire-wound designs.
To ensure performance and reliability, SFMS conducts extensive validation testing, including wind tunnel evaluations, response time testing, vibration testing, and thermal cycling. This rigorous development process helps reduce program risk while delivering accurate and dependable measurements throughout the aircraft lifecycle.
Benefits
- Our sensing technology delivers superior consistency and long-term stability.
- Robust aerospace packaging protects against debris, vibration, hail, sand, and other environmental hazards.
- Extensive environmental and performance testing reduces development risk and improves system reliability.
- Custom-engineered solutions tailored to engine, airframe, fuel, hydraulic, and ECS requirements.


Precision Temperature Measurement
High-accuracy platinum RTD technology delivers reliable temperature measurement for critical engine, airframe, hydraulic, fuel, and bleed air applications.

Extensive In-House Testing
Every design benefits from rigorous validation, including wind tunnel, vibration, thermal, icing, and lightning testing to reduce program risk and ensure performance.
Benefits
Discover the key advantages that set our solutions apart.
Markets & Applications
Our RTD Thermocouples serve a wide range of markets and systems.
Commercial Aviation
Temperature sensing solutions for commercial aircraft engine and airframe systems.
Military Aviation
Rugged RTD sensors designed for demanding defense applications.
Business Aviation
High-reliability sensing solutions for business jet platforms worldwide.
Aircraft Engines
Bleed Air Systems
Accurate temperature monitoring for air management and ECS applications.
Fuel Systems
Integrated and standalone temperature sensing solutions for fuel management.
Hydraulic Systems
Reliable temperature monitoring to support hydraulic system performance.
Environmental Control Systems
Temperature sensing for cabin air and environmental control applications.
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Media Gallery
Explore the AMETEK SFMS Media Gallery to see our products in action. Browse product images, application photography, videos, facility highlights, and trade show content that showcase the technologies, people, and innovation behind our aerospace sensing solutions. Whether you're looking for marketing assets, technical visuals, or inspiration for your next project, our gallery provides a closer look at how AMETEK supports customers around the world.
● A temperature sensor detects and measures temperature changes in an environment or system.
● Converts temperature into an electrical signal for accurate monitoring and control.
● Essential for real-time temperature management in critical applications.






