At Focusens, we're not just about providing temperature sensors—we’re about offering solutions that cater to your unique needs. When it comes to temperature measurement, two sensors often come up: RTD sensors and PT1000 sensors. While both do the same job, they have key differences that can impact performance depending on your application. In this article, we’ll walk you through the differences, helping you choose the right sensor for your specific needs.

What is an RTD Sensor?

RTD stands for Resistance Temperature Detector, and it’s a type of sensor that measures temperature by correlating the resistance of a material (usually platinum) with temperature. As the temperature rises, the resistance of the material increases in a predictable, linear way, making RTDs highly accurate, stable, and reliable.

At Focusens, we not only meet standard requirements, we exceed them. We have reliable process capabilities at ultra-low temperatures (as low as -80°C), high waterproof ratings such as IP68, and response times within 10 seconds. With our deep process expertise and flexible customization, we are ready to handle the most demanding application requirements.

What is a PT1000 Sensor?

A PT1000 sensor is a special type of RTD sensor, with the “1000” referring to its resistance of 1000 ohms at 0°C. Compared to the more common PT100 sensor (which has a resistance of 100 ohms), the PT1000 offers better accuracy and stability, especially in environments where signal integrity is critical. This makes the PT1000 ideal for situations that demand precise measurements or need to transmit data over long distances.

Key Differences Between RTD and PT1000 Sensors

Both sensors belong to the same family, but their differences lie in the details that can make a big impact:

1. Resistance Value  

   PT100: 100 ohms at 0°C  

   PT1000: 1000 ohms at 0°C (offering more precision)

2. Signal Sensitivity  

   PT100: While accurate, the lower resistance can make it more sensitive to interference and noise, especially over long distances.  

   PT1000: The higher resistance gives it a stronger, more stable signal, making it ideal for environments with long signal transmission distances or high electromagnetic interference.

3. Application Scenarios  

   PT100: Great for less demanding environments or where budget is a factor.     

PT1000: Perfect for critical applications like mechanical manufacturing, scientific research(like extreme temperatures or electromagnetic interference).

Why Choose PT1000 Over RTD?

If you’re looking for flexibility, Focusens has you covered. We understand that every project is different, and we offer customized solutions that fit your specific needs, whether it's ultra-low temperatures, waterproof performance, or custom installations. We source all our RTD components from original European brands, ensuring premium quality and long-term reliability.

Final Thoughts

At Focusens, we understand that choosing the right temperature sensor is more than just picking a model. It’s about finding the best product for your needs – whether you need a PT1000 sensor for long-distance signal transmission or a PT100 sensor for a simple application that works in most scenarios. Whatever the challenge, we offer flexible, high-quality solutions to meet your exact requirements. When selecting a sensor, key factors such as accuracy, response time, and environmental compatibility must be optimized to ensure optimal performance.

Need help choosing the right sensor? Our team is here to guide you in selecting the perfect RTD solution for your project. Let us help you bring your ideas to life with the best temperature sensing technology on the market!