Platinum resistor temperature sensor

The utility model relates to a platinum resistor temperature sensor, including protection tube and data transmission subassembly, the longitudinal section of protection tube is the U -shaped, set up resistance element, pyrocondensation pipe and encapsulation filling layer in the protection tube, resistance element is located U -shaped open -ended one end is kept away from to the protection tube, and the data transmission subassembly is located the protection tube outside, and it includes many data transmission lines, last first resistance wire and the second resistance wire of having connect of resistance element, first resistance wire and/or second resistance wire are connected with two data transmission lines at least, and the pyrocondensation pipe is established to the junction cover, the one end that resistance element kept away from the data transmission subassembly sets up waterproof seal at a distance from the cover to being close to between the one end of data transmission subassembly, set up the enca