The PR-12 series has been updated with low, high, and extreme temperature ranges; all of the new models will be PR-12(L,H,E)*. The older models have been discontinued.
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.
RANGE : L : LOW (-50 to 250°C) H : HIGH (-50 to 450°C) E : EXTREME (-200 to 600°C)