Validation Thermocouples, Harnesses, & Assemblies

cGMP Validation Thermocouple Assemblies

Thermocouples are devices that use the thermoelectric effect of two dissimilar conductors to measure temperature. The predictable and repeatable thermoelectric properties of specific alloys make them useful for measuring temperature across different ranges and in various environmental conditions. Thermocouples are a traditional tool used in the accurate validation of environmental chambers, freezers, autoclaves, and other analytical and processing equipment in the biopharma industries. 

Masy BioServices' thermocouples are specifically designed for validation and thermal mapping. We offer thermocouples made from ultra-premium select grade wire - the highest purity and uniformity available in the industry, with accuracy ± 0.18°C at 0°C - to help ensure the quality and accuracy of your thermal measurement.

Type T Thermocouples

Type T thermocouples, using copper and constantan, are used in oxidizing, inert or dry reducing atmospheres, or in vacuums. They are highly resistant to corrosion from atmospheric moisture and condensation, and exhibit high stability at low temperature. Type T thermocouples are suited for measurements from -200°C to 350°C.

Fluorinated Ethylene Propylene (FEP) Insulated Thermocouples

FEP insulated thermocouples are fabricated with tips that are heat shrunk to seal the sensor tip from the environment and media, extending the sensor's life. FEP insulated thermocouples are suited for temperature mapping in freezers, refrigerators, incubators, stability chambers and any steam application (steam-in-place, autoclaves).

FEP insulated thermocouples are available in two gauge weights: 

Heavy Gauge (22 AWG)

  • Temperature rating: -200°C to 200°C
  • Applications: cold rooms, stability rooms, steam sterilizers, autoclaves, fermentors, steam-in-place, vessels, and tanks

Thin Gauge (28 AWG)

  • Temperature rating: -200°C to 200°C
  • Applications: incubators, stability chambers, refrigerators, freezers, cryogenic storage, fermentors, steam-in-place, vessels, and tanks

Kapton® Insulated Thermocouples

Kapton is a polyimide film that remains stable across a wide range of temperatures. Kapton insulated thermocouples are designed for dry-heat applications only; a 304 stainless tip is installed to prevent unraveling of the Kapton coating. Kapton thermocouples are available in 22AWG only and can be used continuously at temperatures up to 300°C (short-term exposure up to 350°C limited to 6 hours). These thermocouples work well in depyrogenation ovens and dry heat ovens. 

Customized Validation Thermocouple Harnesses

Masy BioServices can create custom, pre-assembled thermocouple harnesses for your specific needs. Thermocouples can be cut to length, tipped (FEP only), harnessed in bundles of 12, and individually labeled with steam-resistant, high-visibility numeric labels at both ends. Label options include EZ-Read numeric label flags for greater visibility or smaller-profile shrink labels. Our experienced and trained thermocouple department can create custom thermocouple sets to meet your requirements; leave the effort of producing thermocouples to us!

Validation Thermocouple Wire Spools

Do you have thermocouple production resources in-house? Masy BioServices can provide you with the same ultra-premium select grade wire we use for constructing your own thermocouples on-demand.

Feed-Through Assemblies, Adapters, & Other Accessories


IMG_9362_cropped_sm.jpg ThermocoupleFeedthrough_RevM_300x300_72dpi.jpg
Rev. K Feed-Through Rev. M Feed-Through

Need to place your thermocouples in closed systems, such as autoclaves or steam-in-place applications? We offer stainless steel feed-through assemblies that maintain the integrity of your operation while allowing for the convenient passage of thermocouple wires. NPT to sanitary adapters, quick disconnects, strain reliefs, and other accessories are available to help your place your thermocouples accurately and securely.

Thermocouple Calibration

Masy BioServices thermocouples can be calibrated pre-run and post-run, saving you the expense of temperature standards and baths, and confirming the integrity of your temperature measurements.

Initial Pre-Run Calibrations

  • Automatic: low, high and check in range of -30°C to 140°C or 30°C to 300°C (Kapton only). Additional checks available.
  • Manual: low -196°C, high 0°C to 300°C (Kapton only), and check -30°C to 140°C or check -80°C. Additional checks available.

Final Post-Run Calibrations

  • Manual: checks at -196°C, -80°C and/or within range -30°C to 300°C (Kapton only).

Masy BioServices is your Trusted Source for Premium Validation Thermocouples

Masy BioServices has been building high-quality thermocouples for decades; our experienced thermocouple department can produce up to 5 miles of thermocouples each month.

Contact us today with your custom thermocouple harness, raw thermocouple wire, and thermocouple accessory needs.

Let us help you configure the right solution for your temperature mapping and validation needs.

Equipment for Rentals and Sales

Validation Datalogging Systems

Monitoring Systems

Temperature Standards

Temperature Reference Baths

  • Fluke 9190A

  • GE Kaye LTR-140

  • GE Kaye HTR-400

  • GE Kaye CTR-80

  • Hart 7380

Specialty Reference Baths

  • GE Kaye K140-4

  • Fluke 9190

  • Hart Micro-Bath 6102

  • Hart Micro-Bath 7103

  • Hart Portable Furnace 9150

  • Hart Handheld Drywell 9100/9001S

  • Hart Handheld Drywell 9102

Additional Equipment

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