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General Purpose Thermocouples

Backer Marathon is pleased to present our line of premium temperature sensors. We offer standard thermocouples, mineral insulated thermocouples, and RTDs. Backer Marathon has hundreds of different models in stock and offers quick turnaround, usually 48 hours or less, on custom designed and manufactured units. We only use the highest grade materials and offer a variety of sheath materials for any environment or temperature range. All sensors are subject to rigid quality control procedures and a thorough inspection process. Expert engineering assistance is readily available for any order size, large or small. In addition to your sensor needs, we can engineer a complete thermal system for you. Worldwide on-site support is available through one of our many distributors or representatives.

Product Lines


Adjustable Armor

Backer Marathon stocks Adjustable Armor Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Adjustable Braid

Backer Marathon carries Standard and Metric Adjustable Braid Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Fixed Depth

Backer Marathon has an array of Fixed Depth Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Shim Style

Backer Marathon has an array of Shim Style Surface Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Newbury Nozzle

Backer Marathon has an array of Newbury Nozzle Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Nissei Nozzle

Backer Marathon has a large array of Nissei Nozzle Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Shallow Nozzle

Backer Marathon carries an array of Shallow Nozzle Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Washer Style

Backer Marathon has an array of Washer Style Surface Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Bendable Probe

Backer Marathon has an array of Bendable Probe Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.

Hose Clamp

Backer Marathon carries an array of Hose Clamp Style Thermocouples ready for immediate delivery. We also offer quick turnaround for custom orders.