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Industrial RTD (PT100) Probes with Miniature Aluminum Protection Head

RTD Probe with Miniature Aluminum Protection Head


Item# PR-14H-3-100-1/4-9

Calibration service available for this series

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $89.79
5-9 $85.30
10-24 $83.50
25-49 $79.91
50-99 $78.12
100+ $76.32

In stock

Lead Time ( If not in Stock): 2 weeks

RTD Probe with Miniature Aluminum Protection Head PR-14H-3-100-1/4-9 PR-14H-3-100-1/4-9
  • Mini aluminum protection head for areas where space is limited
  • Protection head lid is chained so that lid stays with assembly
  • Low temperature range: -50 to 250°C (-58 to 482°F)
  • High temperature range: -50 to 450°C (-58 to 842°F)
  • Extreme temperature range: -200 to 600°C (-328 to 1112°F)
  • Class "A" accuracy* conforming to IEC 60751
  • Choice of PT100 Ω and PT1000 Ω element
  • Standard probe lengths of 2, 3, 4, 6, 9, 12, 18 and 24 in.
  • Inside dimensions for the aluminum head: Diameter: 1.5 inches; Height: 0.85 inches

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Process Temperature Range
Sensor Application
Process Connection Size
Nominal Output
Number of Wires
Sheath Material
Probe Diameter
Probe Length
Termination Connection Type
Additional Feature

Product Specs

  • Accuracy Class A from -100°C to 450°C (-148 to 842°F); Class B otherwise, per IEC 60752
  • Cold-End Max Temperature Low (L), 100°C (212°F); High (H) and Extreme (E), 250°C (482°F)
  • Dimensions Standard diameters of 1/8”, 3/16”, and 1/4” ; variable lengths
  • Ingress Protection IP67 (with exception of “High” (10H) type)
  • Nominal Resistance Curve Choice of PT100Ω or PT1000Ω
  • Process Temperature Range -200 to 600°C (-328 to 1112°F)
  • Protection head Miniature Aluminum
  • Wire Length / Terminations Screw Terminal

Our PR-14 series RTD probe with miniature aluminum protection head and screw-on cap with chain includes PT100 Ω platinum RTD element or PT1000 RTD element, 1/2" NPT mounting threads and sheath of 316 stainless steel. When properly sized, these can go directly into a thermowell. All probes include a screw terminal block for easy connection of insulated copper extension wire. Replacement probes (without head assembly) are available as well as a "spring-loaded" option which allows for the probe to bottom out in a thermowell for quicker and more accurate response. These are ideal for use in vessels, tanks and similar structures where temperature measurements are needed.

Inside dimensions for the aluminum head: Diameter: 1.5 inches; Height: 0.85 inches

Rated 3 out of 5 by from Head too small for TX401 Head too small for TX401. Had to remove head from another RTD to make this solution work
Date published: 2021-04-26
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My company is looking for a stateside replacement but looking for a max of 350C is that possible?

Asked by: hayasa15
Thank you for your inquiry. Yes this device can handle temperatures up to 450°C.
Answered by: CB Engineer
Date published: 2020-12-16
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