PT100 & PT1000 Temperature Sensor: Differences and Selection Guide

PT100 and PT1000 are the most common types of platinum resistance temperature detectors (RTDs) used in industrial applications. The primary difference lies in their nominal resistance at 0°C: PT100 has 100 ohms, while PT1000 has 1000 ohms. This difference affects sensitivity, self-heating, and wiring requirements. PT1000 sensors offer higher sensitivity and are less susceptible to lead resistance errors, making them ideal for remote sensing applications.