Starting at $21.01

Some models in stock. View available part numbers.

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  • Single element
  • Termination options: Split lead or standard male plug quick disconnect
  • 12" of lead included
  • Call for custom options
  • Short lead time

Watlow large diameter rigid sheath fixed thermocouples come with 1/4 inch diameter sheath, 20 gauge stranded fiberglass lead with stainless steel overbraid, grounded junction, and a split lead termination. The rigid sheath provides protection and accurate placement through bulkheads or platens. Use the Watlow large diameter rigid sheath fixed thermocouple with a compression fitting for water tight immersion application.

There are many options available which tailor the Watlow large diameter rigid sheath fixed thermocouples to your specific application. If the configurations offered are unable to satisfy your requirements, custom manufactured sensors to your exacting specifications are available. Contact Instrumart for details.

Watlow Thermocouples

Over 90 years of manufacturing research and design makes Watlow a world class supplier of temperature measurement products. Watlow has designed and manufactured millions of thermocouples for industrial and commercial equipment. Instrumart is ready to meet your sensing needs with an extensive offering of Watlow thermocouples.

Watlow SERV-RITE Thermocouple Wire
Premium performance and reliability, Insulation temperature ranges from -328 to 2600°F (-200 to 1427°C)
Watlow MC Series Miniature Thermocouple Connectors
Miniature design enables mating with other miniature size thermocouple connectors
In Stock
Watlow SC Series Standard Connector
SC Standard Connectors are ASTM color coded and made of Compensated alloys
Watlow SAC-220 Cable Clamp Connectors
Cable Clamp Connectors for Male or Female
Watlow SKP Single Panel Mount Hardware
Connectors Single Panel Mount Hardware, 425°F (218°C)
Watlow Standard Thermocouple Connection Heads
Made of cast iron (1/2, 3/4, or 1in NPT) or aluminum (1/2in NPT)
Watlow 50500701 / 50500801 Terminal Blocks for PT Heads
Single or dual elements for the PT Series polypropylene head
Part Number Price Available
Show Configuration
Base Price
Construction Code
Plain sheath, straight large, diameter
Sheath Diameter
1/4 inch
Type J
Lead Protection
Fiberglass - 20 gauge stranded (+$0.63)
Grounded, round tip
Sheath Length
1 inch
Lead Length
12 inches included
Standard, 2.5 inch split leads
$21.64 1

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 1-2 weeks". Click here to select options