Prices incl. VAT plus shipping costs of 4,95 € to GER (incl. VAT)
Delivery time 4 Workdays to GER (AT, NL, BE +1 workdays)
Bitte stellen Sie sicher, dass die technischen Daten der Anschlussleitung, insbesondere hinsichtlich Temperatur und IP-Schutzklasse, zu Ihrer Applikation passen. Detailierte Informationen finden Sie in unseren Datenblättern.
Temperaturbereiche unserer Leitungen:
Glasseide: -50 °C bis +400 °C











Bitte beachten Sie den spezifizierten Temperaturbereich des Stecker / der Aderendenhülsen
isolierte Aderendhülsen: bis 80 °C
Mini-TE-Stecker: bis 220 °C
TE-Stecker: bis 220 °C









E - Material connection cable: | ||
F - Length connection cable: | ||
G - Connector: | ||
I - Diameter bayonet tip: | ||
J - Diameter bayonet cap: | ||
Quantity: |
- Order number: 802211-1211
Advantages
- Advice directly from experts
- Quality directly from the manufacturer
- Long-term stable temperature probes over years
- B2B customers welcome: All information here

Our employee will be happy to help you:
Julian Mäntele
Tel.: +49 (0)7653 96 59 771
E-Mail: jmaentele@testo-sensor.de
Bayonet thermocouples are used in process measurement technology, e.g. in the plastics industry. The immersion depth or mounting length can be adjusted to suit the measuring task by means of the rotatable bayonet cap. The bayonet lock ensures a secure hold and the threaded rising spring ensures a constant contact pressure.
Here you can find our downloads for the Bayonet probe type K with conical measuring tip
Bayonet thermocouple - General Information | |||||||||||||||||||
Measuring range | -40 °C to +400 °C | ||||||||||||||||||
Perm. °C range cable | -50 °C to +400 °C | ||||||||||||||||||
Accuracy | -40 °C to +375 °C: ±1,5 °C | 375 °C to 1.000 °C: ±0,004 |t| according to DIN IEC 60584 Class 1 | ||||||||||||||||||
Response time | t63 / t99: information is available on request | ||||||||||||||||||
Pull-out force | ≥ 30 N | ||||||||||||||||||
Bayonet thermocouple - Supply and output | |||||||||||||||||||
Measuring element | Thermocouple Type K | ||||||||||||||||||
Measuring point | Measuring point isolated | ||||||||||||||||||
Measurement signal | Thermovoltage | ||||||||||||||||||
Bayonet thermocouple - Ambient conditions | |||||||||||||||||||
Protection class | IP20 according DIN 60529 (depending on cable) | ||||||||||||||||||
Humidity and moisture condensation resistance | according to application-specific qualification | ||||||||||||||||||
Bayonet thermocouple - Certificates and Standards | |||||||||||||||||||
Standards | DIN EN 61326-1:2013 | DIN EN IEC 63000:2019-05 | ||||||||||||||||||
Directive | RoHS 2011/65/EU | 2014/30/EU | ||||||||||||||||||
Certificates | Certificate of suitability (on request) | ||||||||||||||||||
Bayonet thermocouple - Technical Drawing | |||||||||||||||||||
![]() | |||||||||||||||||||
I - Diameter bayonet tip | |||||||||||||||||||
J - Diameter bayonet cap | |||||||||||||||||||
![]() | |||||||||||||||||||
E - Material connection cable | |||||||||||||||||||
![]() | |||||||||||||||||||
F - Length connection cable | |||||||||||||||||||
![]() | |||||||||||||||||||
G - Connector | |||||||||||||||||||
![]() | |||||||||||||||||||
All dimensions in mm | |||||||||||||||||||
Bayonet thermocouple - Probe assembly | |||||||||||||||||||
Mounting length (mm) | 10 to 240 | ||||||||||||||||||
Design | 120° measuring tip | ||||||||||||||||||
Bayonet thermocouple - Bayonet tip | |||||||||||||||||||
Material | Stainless steel 1.4301 | SUS 304 | ![]() | |||||||||||||||||
Length (mm) | 10 | ||||||||||||||||||
Diameter (mm) | 6, 81} | ||||||||||||||||||
1}Tolerance ± 0,1 mm | |||||||||||||||||||
Bayonet thermocouple - Bayonet cap | |||||||||||||||||||
Material | Nickel plated | ![]() | |||||||||||||||||
Length (mm) | 16 | ||||||||||||||||||
Diameter (mm) | 12, 14 | ||||||||||||||||||
Bayonet thermocouple - Pressure spring | |||||||||||||||||||
Material | Stainless steel spring 1.4310 | SUS 302 | ||||||||||||||||||
Length (mm) | 250 | ||||||||||||||||||
Bayonet thermocouple - Thermocouple cable | |||||||||||||||||||
![]() | Type | Color | Material (Outside / Inside) | Perm. range °C | Ø Outside (mm) | Cross section (mm²) | Color strand | Ω / m | |||||||||||
Thermocouple cable | Type K1} | Glass fibre / Varnish | -50 to +400 | 3,0 ± 0,2 | 0,22 | gn, wt | 4,502} | ||||||||||||
Length (m) | 1, 2, 3, 4, 5, 10, 15, 20 | ||||||||||||||||||
Insulation resistance: ≥ 100 MOhm at min. 100 VDC | 1}Color according to IEC 584 | 2}per thermocouple | Cable available as accessory | |||||||||||||||||||
Bayonet thermocouple - Connector | |||||||||||||||||||
![]() | Insulated end ferrules (50 mm) | ||||||||||||||||||
![]() | Mini-TC connector Type K gn | ||||||||||||||||||
![]() | Mini-TC connector Type K ye | ||||||||||||||||||
![]() | TC connector Type K gn | ||||||||||||||||||
![]() | TC connector Type K ye | ||||||||||||||||||
Bayonet thermocouple - Delivery | |||||||||||||||||||
Assembly instructions | via bayonet fitting | ||||||||||||||||||
Delivery and Packaging | Probe, seperatly packaged in PE bag | ||||||||||||||||||
Matching accessories | Heat-conducting paste, Threaded nipple | ||||||||||||||||||
Bayonet thermocouple - Important assembly advices | |||||||||||||||||||
![]() | ![]() | For optimal integration of the bayonet probe into your process, please observe the following installation steps: | |||||||||||||||||
![]() | (2) Insert the probe tip into the borehole and fix the probe to the bayonet nipple with the bayonet cap. The borehole should be made so that the borehole is approx. 0.2 mm larger than the outer diameter of the probe and that the borehole corresponds to the shape of the probe tip. The borehole must be clean and free of residues (e.g. shavings). To optimize heat transfer, we recommend using our heat conductive paste at temperatures below 200 °C. | ||||||||||||||||||
(3) For a safe installation, please select the appropriate bayonet nipple from our accessories. Make sure that the process connection thread is suitable for your application. | |||||||||||||||||||
Qualification measurement series to ensure the function of our temperature probes over their service life | |||||||||||||||||||
![]() | Robust even with temperature changes | Temperature probes are exposed to harsh environmental conditions, such as changing temperatures and humidity, and should still work reliably in the field for 15 years or more. | ![]() | ||||||||||||||||
![]() | Resistant to heat and humidity | Extremely varying ambient conditions cause immense stress for the temperature probe and the design must be suitably robust and qualified. | |||||||||||||||||
![]() | Long-term stable in any weather | Continuous exposure to sunlight, snow, fog, cold and ice shall not impair the function of the temperature probe and compliance with the specification. | |||||||||||||||||
![]() | Robust even under high vibration load | Depending on the application, compressors and fans generate strong vibrations which are transmitted to components and cables. Therefore the used temperature probes have to be vibration resistant (20g). | ![]() | ||||||||||||||||
![]() | Reliable in practice: high pull-out force | The robust design ensures the necessary cable pull-out resistance, even under vibration and higher temperatures. | ![]() | ||||||||||||||||
![]() | Efficient through short response time | Depending on the application, short response times may be necessary to ensure efficient control of the system. Our sensor design is optimised for this requirement and we prove response times. | ![]() | ||||||||||||||||
![]() | Corrosion-resistant even in salt spray | Temperature probes are also used in coastal regions. For this reason, the temperature probes must also be able to withstand salty air for a lifespan of 15 years. | |||||||||||||||||
![]() Applicable for this probe type |
industry: | Automotive, Machinery and apparatus engineering, Plastics industry |
Material cable: | Glass fibre |
Temperature range: | -40 °C to +400 °C |
Thermocouple: | Type K Class 1 |
- Download Datenblatt Bajonettfühler Typ K mit konischer Messspitze
- Download Data Sheet Bayonet probe type K with conical measuring tip
- Download Bedienungsansleitung Bajonettfühler Typ K mit konischer Messspitze
- Download Konformitätserklärung Bajonettfühler Typ K mit konischer Messspitze
- Download Kennlinie Thermoelement Typ K
- Download Characteristic thermocouple type K
- Download Betriebsanleitung Thermoelemente
- Download Operating instructions Thermocouple