Beaded Thermocouple (Type 1)

General Purpose Thermocouples - Beaded Wire Thermocouples

Our Type 1 thermocouples are a simple welded bead thermocouple made from bare wire or insulated wire with a welded junction. Various wire sizes are available with the junction welded in an inert argon atmosphere. Type 1 assemblies are available in thermocouple types K, T, J, N, E, R, S, B, G, C and D.

What are the applications of beaded thermocouples?

Beaded thermocouples are suitable for attachment to surfaces and are ideal where a quick and simple installation is required. They have an almost instant response to changes in temperature and can be easily attached using adhesive tape, epoxy resin, underneath a washer or gently clamped in place. They also excel as simple air temperature sensors due to their very fast response times and PFA insulated Type 1 thermocouples can also be used for measuring the temperatures of liquids, oils and acids (some restrictions do apply when measuring liquids, please contact us for application advice).

Beaded thermocouples can be fitted with a miniature or standard thermocouple plug for easy connection to thermocouple instrumentation.

complete beaded thermocouple assembly
Type 1 Beaded Thermocouple with 'tails'
Beaded thermocouple with miniature plu
Type 1 Beaded Thermocouple terminating in a miniature plug

Ceramic Insulated Beaded Thermocouple Inserts

Thermocouple insert or element with beaded junction We also manufacture a range of beaded thermocouple inserts (elements) which have ceramic insulators and are designed to fit inside a protective metal sheath. These are known as Type 2 thermocouples.

Type 1 Temperature Sensors - Beaded Thermocouple Enquiry Form

1. Thermocouple Type
2. Style Number
3. Overall Length
4. Optional Thermocouple Plug

Illustration Select
3P6M - Miniature Plug
Plastic, rated to 425°F/220ºC (normal)
3P6 - Standard Plug
Plastic, rated to 570°F/300ºC
5. 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

Send Enquiry  
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1 Thermocouple Type Temperature Range (continuous) Temperature Range
(short term)
K Nickel Chromium vs
Nickel Aluminium
32°F to +2010°F -290°F to +2460°F
T Copper vs Constantan -300°F to +570°F -420°F to +750°F
J Iron vs Constantan +68°F to +1290°F -290°F to +1380°F
N Nicrosil vs Nisil 32°F to +2010°F -450°F to +2370°F
E Nickel Chromium vs Constantan 32°F to +1470°F -40°F to +1650°F
R Platinum - 13% Rhodium vs
32°F to +2820°F -60°F to +3180°F
S Platinum - 10% Rhodium vs
32°F to +2910°F -60°F to +3090°F
B Platinum - 30% Rhodium vs
Platinum 6% Rhodium
+212°F to +2910°F +212°F to +3310°F
G Tungsten vs
Tingsten 26% Rhenium
+212°F to +2910°F +20°C to +2320°C
C Tungsten - 5% Rhenium vs
Tungsten 26% Rhenium
+68°F to +4170°F 32°F to +4710°F
D Tungsten - 3% Rhenium vs
Tungsten 26% Rhenium
32°C to +3810°F 32°F to +4710°F
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