About Thermometrics
Founded in 1965, Thermometrics Corporation has spent over six decades engineering precision temperature sensing solutions for the world's most demanding industries — from aerospace and defense to energy and pharmaceuticals.
Six Decades of Precision Temperature Measurement
Thermometrics Corporation was founded in 1965 in Northridge, California, with a straightforward mission: to manufacture the most accurate, reliable temperature sensors available. What began as a small operation serving local industrial clients has grown into a trusted supplier for aerospace primes, defense contractors, energy companies, and pharmaceutical manufacturers worldwide.
From our manufacturing facility on Parthenia Street in Northridge, we design and produce a comprehensive range of temperature sensing products — including RTD sensors, thermocouple assemblies, bearing sensors, thermowells, and flanges — all backed by our dual AS9100D and ISO 9001:2015 certifications.
Over 60 years later, our commitment remains the same: deliver precision-engineered temperature sensors with the quality, documentation, and responsiveness that our customers demand.
Precision Temperature Sensing Solutions for Critical Applications
Our mission is to provide engineered temperature sensing solutions that meet the exacting requirements of industries where measurement accuracy is not optional — it's essential. We combine decades of manufacturing expertise with rigorous quality systems to deliver sensors our customers can depend on in the most demanding environments.
In-House Manufacturing Expertise
Vacuum Brazing
Our in-house vacuum brazing capabilities enable us to create hermetically sealed sensor assemblies that withstand extreme temperatures and corrosive environments. This process is essential for aerospace and high-reliability applications where leak-tight joints are critical.
TIG/GTAW Welding
Precision TIG (GTAW) welding for thermocouple sheath closures, transition joints, and sensor housing assemblies. Our certified welders produce clean, consistent welds that maintain sensor integrity under thermal cycling and mechanical stress.
Mineral-Insulated Assembly
We manufacture mineral-insulated (MI) sensor assemblies using magnesium oxide insulation compacted within metal sheaths. MI construction provides superior response time, vibration resistance, and long-term stability for demanding industrial applications.
CNC Machining
In-house CNC turning and milling for thermowell bodies, connection heads, flanges, and custom fittings. Tight tolerance machining ensures proper fit and seal in critical process connections.
NIST-Traceable Calibration
Our calibration laboratory uses NIST-traceable reference standards and temperature baths to verify sensor accuracy across the full operating range. Calibration data and certificates are provided with every shipment.
Testing & Inspection
Comprehensive testing includes resistance measurement, insulation resistance testing, dielectric strength verification, and dimensional inspection. Every sensor is individually tested before shipment.
Key Milestones
Company Founded
Thermometrics Corporation established in Northridge, California, specializing in the manufacture of resistance temperature detectors (RTDs) for industrial applications.
Aerospace Market Entry
Expanded capabilities to serve the aerospace and defense sectors, developing flight-critical temperature sensors for engine monitoring and environmental control systems.
Thermocouple Production Added
Added thermocouple assembly manufacturing to complement our RTD product line, offering customers a complete range of temperature sensing solutions under one roof.
ISO 9001 Certification Achieved
Implemented a formal quality management system and achieved ISO 9001 certification, establishing documented processes for design, manufacturing, inspection, and calibration.
Vacuum Brazing Capability
Invested in vacuum brazing furnace technology, enabling hermetically sealed sensor assemblies for high-reliability aerospace, energy, and pharmaceutical applications.
AS9100 Certification
Upgraded our quality management system to AS9100 (now AS9100D), meeting the stringent requirements of the aerospace and defense supply chain.
60+ Years of Excellence
Dual certified AS9100D and ISO 9001:2015 manufacturer producing 63+ sensor configurations for aerospace, oil & gas, pharmaceutical, energy, heat treating, medical, food processing, and HVAC industries.
Experienced Engineers & Skilled Technicians
The People Behind the Precision
Our team includes mechanical engineers, metallurgists, calibration technicians, and skilled assemblers — many with decades of tenure at Thermometrics. This depth of experience means faster problem-solving, better design recommendations, and sensors that work right the first time.
When you call Thermometrics, you speak directly with the engineers who design and build your sensors. No call centers, no layers of bureaucracy — just direct access to the people who know temperature measurement inside and out.
Engineering Expertise
Our engineers have designed sensors for jet engines, nuclear reactors, spacecraft, and deep-sea applications. They bring real-world application knowledge to every project.
Manufacturing Skill
Certified welders, experienced brazers, and precision assemblers with years of hands-on expertise building temperature sensors to the tightest tolerances.
Quality Assurance
Dedicated QA professionals manage our AS9100D system, conduct incoming inspection, in-process checks, final acceptance testing, and calibration verification.
Customer Support
Responsive sales and applications engineering support. We provide technical guidance on sensor selection, quote requests answered within one business day.
Ready to Work with a
Trusted Sensor Partner?
Whether you need a standard RTD sensor or a custom-engineered temperature probe, our team is ready to help. Send us your requirements and we'll respond with a detailed quotation within one business day.