Sparkfun Platinum RTD Sensor - PT100

The Platinum RTD Sensor - PT100 is a highly reliable temperature sensor with a resistance of 100Ω at 0°C, designed for precision in the temperature range of -200°C to 600°C, though it is most commonly utilized between -50°C and +250°C. This sensor is ideal for various applications requiring accurate temperature measurement and is compatible with the Qwiic PT100 ADC for seamless integration.

This sensor is perfect for industrial environments, laboratory settings, and any application where precise temperature monitoring is crucial. Its ability to operate within a broad temperature range makes it versatile for both extreme and moderate conditions, ensuring consistent performance.

One of the standout benefits of the PT100 sensor is its accuracy and stability over time, making it a preferred choice for critical applications. Its platinum construction provides excellent linearity and repeatability, which are essential for maintaining consistent measurements. Additionally, its robust design ensures durability even in challenging environments.

Connecting the PT100 sensor is straightforward. For a three-wire configuration, connect the red wires to terminals 3 and 4, and the white wire to terminal 2 on the Qwiic PT100 ADC. The A and B pads on the back of the Qwiic PT100 PCB should be shorted. To ensure accurate readings, utilize the Example4-3-Wire from the ADS122C04 library. For those using a digital multimeter, expect to see approximately 1 Ohm between the red wires and about 100 Ohms between the red and white wires.