1. The resistance temperature characteristic of RTDs is linear. 2 They have a wide operating temperature range: from minus 200 to plus 650°C. 3. They have high degree of accuracy and long term stability. 4. RTDs can be easily installed and replaced. 5. Quick response. The response time is around 2 to 10 seconds. 6. They can be used to measure differential pressure also. 7. No compensation circuit required.