The PR-13 series has been updated with low, high, and extreme temperature ranges; all of the new models will be PR-13(L,H,E)*. The older models have been discontinued.
The PR-13 RTD probe assembly has a 3-prong Omega "OTP" standard style connector for easy connection to extension cables, hand-held meters or other instrumentation. Probe diameter is 1/8", 3/16" or 1/4". The measuring portion of the probe can be simply inserted into a container to measure liquid temperature, or fixed into place in a pipe, tank, or vessel using an optional "BRLK" or "SSLK" compression fitting. These probes can be ordered with PT100 or PT1000 resistance element.
RANGE : L : LOW (-50 to 250°C) H : HIGH (-50 to 450°C) E : EXTREME (-200 to 600°C)