Complete Heavy Duty 2.5" PT100 Thermowell Plug-In Assembly Complete PT100 RTD Temperature Sensor built into a 304 Stainless Steel Thermowell Includes 1/2 MPT threads, 1/2" FPT Nylon locknut and two silicone washers 6' cable can be unplugged from the sensor. For use in your RIMS tube or mash tun. Conforms with standard connector used by stir-plate brand controllers, controllers sold by theelectricbrewery.com and any PID controller that supports PT100 sensors. For reference, one side of the PT100 sensor is wired to pin 2 and the other side of the PT100 sensor is wired to pins 1 & 3.