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Reduced Tip Resistance Thermometers - Pt100 Sensors

with IP67 Bakelite head

  • Three styles of sensor are available; Type 17's, our most popular style, are economical, semi flexible and suited to a wide variety of industrial applications up to 932°F (500°C). Type 18's are best suited for applications up to 1112°F (600°C) or where a high accuracy element is incorporated and Type 16's, which are ideal for rigid stem applications or where the sensor is shorter than 2", rated to 482°F (250°C)
  • Custom built to your specification and terminated in a weatherproof Bakelite plastic screw top terminal head with tube entry and Wire entry at a right angle to each other with a Bakelite terminal block. Suitable for simplex or duplex or triplex assemblies. Supplied with a 20mm x 1.5mm ISO plastic pinch gland on the Wire entry for Wires from 0.250" to 0.500" diameter
  • Alternatively, we have a large range of sensors available to buy online in various diameters and lengths
  • High accuracy, repeatability and reproducibility as simplex, duplex or triplex element assemblies
  • Wide operating temperature range of -148°C to +1112°F (-100ºC to +600ºC).
  • Available in 2, 3 and 4 wire configurations, in grade B, A, 1/3, 1/5 or 1/10 accuracy
  • 316 Stainless Steel sheathed and manufactured to IEC 60751:2008

Enquiry Form

1. Sensor Style

2. No. of Elements and Ro Value

Number of Elements Select
Simplex (1 element)
Duplex (2 elements)
Triplex (3 elements)

Resistance value at 0ºC:

3. Tolerance of Element

  Tolerance of Element
(IEC 60751 for Pt100)
Grade Accuracy
@ 0ºC
@ 100ºC
B ±0.30°C ±0.80°C
A ±0.15°C ±0.35°C
1/3 ±0.10°C ±0.27°C
1/5 ±0.06°C ±0.16°C
1/10 ±0.03°C ±0.08°C
Note: 130Ω elements are only
available in Grade B

4. Wiring Configuration

  Wiring Configuration
(IEC 60751:2008)
2 2 wire
3 3 wire (most popular)
4 4 wire
4BL 4 wire blind loop

5. Sheath Diameter

6. Sheath Length


7. Optional Compression Fitting

8. Reduced Tip Diameter (d1)


9. Reduced Tip Length (L1)


10. Optional 4 to 20mA Transmitter

11. 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  

1 Sensor Style Temperature Range
17 Type 17 - Semi flexible, Mineral Insulated
Our most popular style
-100ºC to +500ºC
18 Type 18 - Semi flexible, Mineral Insulated
Good for high accuracy, high temp applications
-100ºC to +600ºC
16 Type 16 - Semi flexible, Rigid Sheath
Ideal for rigid stem applications or
where the sensor is shorter than 50mm
-100ºC to +250ºC
Note: Some wiring and number of element configurations may not be available in all diameters