What Is Pt200 Temperature Sensor? You are here: Home / What Is / What Is Pt200 Temperature Sensor? Pt200 sensors are a rare type of platinum resistance thermometer. Pt refers to that the sensor is made from Platinum (Pt). 200 refers to that at 0°C sensor has a resistance of 200 ohms (Ω).See definition: Resistance thermometerView Detailed Technical Information: Resistance Thermometer View Our RTD Sensors If you want to order a temperature sensor or you are unsure exactly what you need, get in touch and we can help you. Contact Us Share on facebook Share on twitter Share on linkedin