For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, basically a kind of thermistor. In this sensor, the resistor is actually a small strip of Platinum with a resistance of 1000 ohms at 0°C, thus the name PT1000.  

Features:

 

 
• Based on resistance measurement principles
 
• Resistor material is Platinum with a value of 1000 ohm at temperature 0°C
 
• Platinum has a positive resistance temperature factor; resistance increases with rising temperature
 
• Resistance variation is a function of temperature: 3.85?/°C nominal
 
• High accuracy and stability compared to thermocouples, silicon-based temperature sensors, or thermistors