Industrial Head Thermocouple- TC100/75/BT/72/R250 (Type R)
Various sizes available — please select your required thermocouple from the drop-down box.
If unsure, contact our kiln technical team (details below).
Our Industrial Head Thermocouples are built for precision, durability and long-term reliability in a wide range of
electric kiln and furnace models. Designed with a robust ceramic protection tube and industrial-style head assembly,
these sensors provide accurate temperature feedback throughout the firing cycle — essential for maintaining consistency,
repeatability and controlled heat distribution.
Designed for heavy-duty use, the industrial head housing protects the thermocouple connections and ensures a secure,
stable fit. Whether you’re replacing an existing unit or upgrading your kiln’s sensing system, these thermocouples
deliver professional-level performance and dependable results.
Thermocouples should always be installed so the tip protrudes at least 1 inch into the kiln chamber. This ensures
readings are taken from the correct point inside the kiln and helps avoid temperature inaccuracies or controller errors.
If you are replacing an existing thermocouple, always check for signs of wear, corrosion, breakage or deterioration.
Damaged or incorrectly positioned sensors can cause uneven firings, incorrect temperature readings or program failures.
Industrial Head Thermocouple Specifications
Please see our specs table and diagram in the attached PDF for assistance in choosing the correct size.
If you have any queries or are unsure which thermocouple you require, please call our technical team on
01782 319435.
Download a copy of the Industrial Head Thermocouple reference sheet here:
Industrial Thermocouple diagram
Product Notes:
- Preferred sizes shown (simplex / single element thermocouples).
- L3 is 25mm as standard.
- L3 alternative sizes available: 50, 75, 100, 125 & 150mm — increasing L3 reduces L2.
- For longer L1 (up to 500mm), duplex (dual element) or K-type thermocouples — contact us for a quotation.
- Standard ceramic tube material: RA (Recrystallised Alumina — 99.7%).
Not sure which thermocouple you need?
If you’re unsure which industrial thermocouple is correct for your kiln, email our technical team and we’ll be happy to help.
Email our Kiln Technical Team
To help us identify the correct part, please include:
- Your kiln model name and serial number (from the nameplate)
- A photo of your current thermocouple
- A photo of the thermocouple next to a ruler showing the length
- A clear photo of the kiln nameplate if available
Our technical team will confirm the correct thermocouple and ensure you choose the right part.