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Industrial RTD (PT100) Probes with Cast Iron Protection Head

RTD Probe with Cast Iron Protection Head


Item# PR-12E-3-100-1/4-6

Calibration service available for this series

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$132.00
5-9 C$125.40
10-24 C$122.76
25-49 C$117.48
50-99 C$114.84
100+ C$112.20

In stock

Lead Time ( If not in Stock): 2 weeks

RTD Probe with Cast Iron Protection Head PR-12E-3-100-1/4-6 PR-12E-3-100-1/4-6
  • 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)
  • Corrosion-resistant cast iron protection head
  • Class "A" accuracy* conforming to IEC 60751
  • Standard probe lengths of 2, 3, 4, 6, 9, 12, 18 and 24 in.
  • Choice of PT100 Ω and PT1000 Ω element
  • Inside dimensions for the cast iron head: Diameter: 2.2 inches; Height: 2.0 inches

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

Product Specs

Our PR-12 series probe with chemical-resistant cast iron protection head and screw-on cap 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 and bottom out in 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-loading" option which allows for the probe to bottom out in a thermowell for quicker and more accurate response. Inside dimensions for the cast iron head: Diameter: 2.2 inches; Height: 2.0 inches

Rated 1 out of 5 by from Omega RTDs are the go to brand we use on our ship Products are easy to install, reliable, and accurate
Date published: 2021-03-31
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Is the spring-loaded RTD sealed from the process or is a thermowell required to prevent leaking into the cast iron head? PR-12-2-100-1/4-12-E-SL-DUAL

Asked by: RTDsAreMyFavorite
Thank you for your inquiry. Spring-loaded probes are not sealed and would require a thermowell to seal probe to the process.
Answered by: Application Engineer JB
Date published: 2021-09-15
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