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General Purpose Thermocouples

High Temperature Magnet Thermocouple (Type 31)

This versatile magnetic thermocouple is suitable for high temperature measurements on ferrous surfaces up to a maximum of 300°C. The sensor is supplied with stainless steel braided fibreglass insulated cable. Available in thermocouple types K, T, J, N or E as standard and has an operating temperature range of -10ºC to +300ºC. Magnet Dimensions: 29mm dia. X 8.5mm thick.

Enquiry Form

1. Thermocouple Type

2. Cable Length


3. Optional Thermocouple Plug

4. Quantity Required

Contact Details

Company Name

Your Name




Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

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We will only use your email address to contact you. We will never give your email address to 3rd parties and we do not sell data on to any other company. We prefer to concentrate on making quality temperature related products.

1 Thermocouple Type Temperature Range (continuous) Temperature Range
(short term)
K Nickel Chromium vs
Nickel Aluminium
0°C to +1100°C -180°C to +1350°C
T Copper vs Constantan -185°C to +300°C -250°C to +400°C
J Iron vs Constantan +20°C to +700°C -180°C to +750°C
N Nicrosil vs Nisil 0°C to +1100°C -270°C to +1300°C
E Nickel Chromium vs Constantan 0°C to +800°C -40°C to +900°C
Temperature ranges refer to the thermocouple type.
The temperature range of the sensor may deviate from the above,
please refer to the product description for more details