RTD 3-wire sensor connection problem

Using Arduino Sensors
1

Hi, I recently bought this sensor: Rtd pt100 temperature sensors 1/2 inch npt threads with detachable connector Sale - Banggood.com-arrival notice-arrival notice

But I can't get to figure out how to connect it and make it work.

If I measure the resistance with a multimeter and I get 0 between the blue leads but nothing between the red and any of the others. By nothing I mean like if they weren't connected at all.

Does anyone know what else I can try? I'm starting thinking it either require higher voltage or it's even broken..

2

The resistance between wires at one end should be zero ohms, that between one of those wires are the other end if the sensor about 100ohms.
You need an amplifier/shield to get a big enough signal for an Arduino to see .

If you put a voltage across the sensor , eg 5v , you will have burnt it out .

3

Here's one breakout board to read RTDs with Arduino.

4

That makes sense now..

Thank you so much for your help!!