PYROULS is an Upper Limit Temperature sensor, installed under the surface, send the surface temperature to the PYROCON12-Trace, ice / freeze protection controller.

datasheet

Features

Isolated NTC thermistor
10KΩ @ 25°C
30 feet cable
24VAC
Rated Voltage – 300V
Semi rigid – Can to be pushed into a conduit
Cable outer jacket color – Black