Mainly, they are a resistive sensor and subject to self-heating ... the reference resistor (in my case 427 Ω) and the RTD probe. As the temperature of the probe increases, its resistance ...

RTD Probes (Resistance Temperature Detector ... The humidity sensor is most often mounted next to the temperature sensor to ensure a correlation between temperature and relative humidity, which ...

Resistance temperature detectors (RTDs) are the most common type of temperature sensor used in BTU metering. The measurement of the RTD resistance is made by passing a small current across the RTD and ...