Product information "Atlas Scientific Industrial PT-1000 Temperature Probe"
The Industrial PT-1000 Temperature Probe is a high-accuracy 4-wire temperature sensor. Internally it uses a class A PT-1000 platinum resistance temperature detector. The sensor is food safe and can be screwed into a pipe or a tank using its 3/4″ NPT threading. The sensor can be used in 2, 3, or 4 wire temperature sensor applications.