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Industrial RTD Probe with Aluminum Protection Head


Item# PR-18E-3-100-1/4-6

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $138.04
5-9 $131.14
10-24 $128.38
25-49 $122.86
50-99 $120.09
100+ $117.33

In stock

Lead Time (If not in stock): 7 weeks
Industrial RTD Probe with Aluminum Protection Head PR-18E-3-100-1/4-6 PR-18E-3-100-1/4-6
  • Standard Size Aluminum protection head
  • Class A accuracy conforming to IEC 60751
  • Low temperature range: -50 to 250°C (-58 to 482°F)
  • High temperature range: -50 to 450°C (-58 to 842°F)

PR-18E-3-100-1/4-6 Model Options

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

  • Accuracy Class A from -100°C to 450°C (-148 to 842°F); Class B otherwise, per IEC 60753
  • 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 Aluminum
  • Wire Length / Terminations Screw Terminal

Omega's PR-18 series probe with standard aluminum protection head with flip-top includes PT100 Ω platinum RTD element or PT1000 RTD element and 1/2" NPT mounting threads. The sheath is made of 316 stainless steel. These probes can be used alone, or can be placed directly into a thermowell. The spring load option should not be ordered unless a thermowell is used. All probes include a screw terminal block for easy connection of insulated copper extension wire. Replacement probes (without protection head assembly) are available as well as a "spring-loading" option which allows for the probe to bottom out in a thermowell for quicker and more accurate response. This probe can be used in tanks, vessels, and large pipes for measurement of flow material.

Inside dimensions for the aluminum head: Diameter: 2.3 inches; Height: 2.2 inches.

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Rated 5 out of 5 by from Industrial Automation Nice unit, the flip top is a really good feature as it does not seize in adverse conditions. Good stabile readings for medium size industry
Date published: 2022-01-21
Rated 5 out of 5 by from RTD is perfect. Customer Service is terrible. This RTD was a perfect replacement for the original which had failed in a critical manufacturing system. The information in the online catalog showed all different options and availability which allowed selection of an in stock unit for quicker delivery.
Date published: 2021-10-02
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