Precision Temperature Sensing Solutions
From standard off-the-shelf configurations to fully custom engineered assemblies, Thermometrics manufactures a complete range of temperature sensing products. All products are manufactured in our AS9100D and ISO 9001:2015 certified facility in Northridge, California.
RTD Sensors
Resistance Temperature Detectors featuring platinum sensing elements in PT100 and PT1000 configurations. Available in 2-, 3-, and 4-wire circuits with Class A and Class B accuracy per IEC 60751. Ideal for precision measurement from -200°C to +850°C.
- PT100 & PT1000 elements
- Class A: ±(0.15 + 0.002·|t|)°C
- 304 SS, 316 SS, Inconel sheaths
- Aerospace, cryogenic, process control
Thermocouple Assemblies
Mineral-insulated metal-sheathed (MIMS) thermocouple assemblies in Types B, C, E, J, K, N, R, S, and T per ASTM E230 and IEC 60584. Extended range to 1700°C with noble metal types for furnace and process applications.
- 9 thermocouple types available
- MIMS construction standard
- Grounded, ungrounded, exposed junctions
- Temperature range to 1700°C
Bearing Sensors
Miniature RTD and thermocouple assemblies engineered for bearing temperature monitoring in rotating machinery. Designed for journal, roller, and thrust bearings with Babbitt-compatible, low-profile housings that fit space-constrained installations.
- Journal, roller, and thrust bearing types
- Babbitt metal compatible designs
- Low-profile miniature packages
- Turbine and compressor applications
Thermowells
Bar-stock and fabricated thermowells in straight, tapered, and stepped profiles. Manufactured from 316 SS, Inconel, Hastelloy, and carbon steel to ASME PTC 19.3 TW standards. Available with threaded, flanged, weld-in, and van stone connections.
- Straight, tapered, stepped profiles
- ASME PTC 19.3 TW compliant
- 316 SS, Inconel, Hastelloy materials
- Wake frequency calculations included
Flanges & Fittings
Precision-machined flanges in weld neck, slip-on, socket weld, threaded, and blind configurations. ANSI Class 150 through 2500, manufactured to ASME B16.5 standards with custom bore sizing available for any thermowell or sensor assembly.
- Weld neck, slip-on, socket weld, blind
- ANSI Class 150–2500
- ASME B16.5 compliant
- Custom bore and face finishes
Accessories & Wire
Complete range of temperature measurement accessories including thermocouple and RTD extension wire, connection heads, 4-20 mA transmitters, sanitary clamps, protection tubes, and wireless temperature monitoring solutions for modern installations.
- Thermocouple & RTD extension wire
- Connection heads (aluminum, steel)
- 4-20 mA transmitters
- Wireless temperature options
Engineering Excellence Since 1965
AS9100D Certified
Our quality management system meets the most stringent aerospace standards. Full traceability, First Article Inspection (FAI), and FAIR documentation packages available on every order.
Custom Engineering
In-house design engineering for custom sensor assemblies. From cryogenic probes to high-temperature exhaust sensors, we design and manufacture to your exact specifications.
Rapid Delivery
Standard configurations ship in 3–5 business days. Expedited and next-day delivery available for critical production needs. AOG (Aircraft on Ground) support for aerospace customers.
NIST Calibration
In-house calibration lab with NIST-traceable standards. Calibration certificates included or available upon request. Multi-point calibration from -196°C to +1100°C.
Trusted Across Critical Industries
Our sensors operate in the most demanding environments — from the -253°C cryogenic temperatures of liquid hydrogen systems to the 1700°C extremes of industrial furnaces.
Ready to Spec
Your Sensor?
Whether you need a standard catalog configuration or a fully custom engineered assembly, our technical team responds to all quote requests within one business day.