Bayonet temperature sensor


Bayonet temperature sensor with a quick installation.
When you need accuracy in your process EPIC® SENSORS is your choice!


  • Spring-loaded bayonet sensor for measuring temperature of bearings or other applications where vibration might occur or quick installation is needed
  • Very easy and quick installation due to bayonet connection
  • Temperature range -200...+300 °C
  • Pt100 or thermocouple (TC)
  • Standard material AISI 316L, others on request
  • Pt100, accuracy class A, as a standard, more accurate on request
  • TC, class 1 as a standard
  • Tailored solutions according to specific needs
  • ATEX-version Ex e also available.

Typical Applications

  • Energy and power plant technology
  • Process industry
  • Chemical industry
  • Machinery, plant and vessel construction.

Check out all our Temperature Sensors!

Drawing 1 - version ...3...

Dimensions 1, data sheet 17
Dimensions of version ...3... with diameter 3 mm MI-cable

Drawing 2 - version without MI-cable

Dimensions 2, data sheet 17
Dimensions of version without MI-cable

Technical data

Probe material

AISI 316L, max. temp. +250 °C, temporarily +300 °C.

Sensor tip diameter

6 or 8 mm. Others on request

Bayonet cap ID

12.2 mm. Others on request

Cable material

SIL = Silicone, max +180 °C
FEP = Teflon®, max +205 °C
GGD = Glass silk/metal braid, max +350 °C

Tolerances Pt100 (EN-60751)

A, tolerance +/- 0.15 + 0.002 x t, operating temperature -100...+450 °C
B, tolerance +/- 0.3 + 0.005 x t, operating temperature -196...+600 °C
B 1/3 DIN, tolerance +/- 1/3 x (0.3 + 0.005 x t), operating temperature -196...+600 °C
B 1/10 DIN, tolerance +/- 1/10 x (0.3 + 0.005 x t), operating temperature -196...+600 °C

Tolerances TC (EN-60584-2)

Type J, tolerance class 1 = -40...375 °C +/- 1.5 °C, 375...750 °C +/- 0.004 x t
Type K and N, tolerance class 1 = -40...375 °C +/- 1.5 °C, 375...1000 °C +/- 0.004 x t

Temperature range Pt100

-200...+300 °C, depending on application and material

Temperature range TC
TC = thermocouple  

-200...+300 °C depending on thermocouple type and material



Quality certificate

ISO 9001:2015 issued by DNV

Bayonet temperature sensor - example code:


Code key, data sheet 17

Click to open the code key image


Pt100 wire colors
Pt100 wire colors
TC type J/K/N wire colors
TC type J/K/N wire colors

Installation example

Installation, data sheet 17


Lapp Automaatio now offers the possibility to install the IoTKey® wireless measurement and remote monitoring system in hazardous industrial environments.

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