MAX31865 RTD Temperature Sensor – High-Precision PT100/PT1000 Temperature Measurement Module
The MAX31865 RTD Temperature Sensor is a high-accuracy signal conditioning module designed to work with PT100 and PT1000 RTD sensors. This module is perfect for industrial automation, scientific research, IoT applications, and precision temperature monitoring. It features a high-resolution ADC for accurate readings and a digital SPI interface for seamless integration with Arduino, Raspberry Pi, ESP32, STM32, and other microcontrollers.
This module compensates for resistance errors, ensuring stable and precise temperature readings in challenging environments. Its robust design and noise-resistant performance make it suitable for applications requiring long-term reliability and precision.
Key Features MAX31865:
✔ High-Accuracy RTD Sensor Compatibility – Works with PT100 & PT1000 resistance temperature detectors for precise thermal measurements.
✔ SPI Digital Interface – Ensures easy integration with microcontrollers and embedded systems for real-time data logging.
✔ Automatic Resistance Compensation – Minimizes wire resistance errors, making it ideal for high-precision applications.
✔ Wide Operating Temperature Range – Supports -200°C to +850°C (sensor-dependent), making it suitable for extreme conditions.
✔ Stable & Noise-Resistant Design – Built for accurate readings even in electrically noisy environments.
✔ Fast Response Time – Quickly detects and reports temperature changes, improving system efficiency.
✔ Multiple RTD Wiring Options – Supports 2-wire, 3-wire, and 4-wire RTD sensor configurations for maximum flexibility.
Technical Specifications:
- Operating Voltage: 3.3V – 5V
- Interface: SPI (Serial Peripheral Interface)
- Temperature Range: -200°C to +850°C (RTD-dependent)
- RTD Sensor Compatibility: PT100 / PT1000
- ADC Resolution: High-Precision Delta-Sigma Converter
- Error Compensation: Automatic cold-junction compensation for improved accuracy
- Supported RTD Wiring: 2-wire, 3-wire, and 4-wire configurations
- Board Dimensions: Compact & easy to integrate into projects
Applications:
🔹 Industrial Automation – Temperature regulation in factories, refineries, and processing plants
🔹 IoT & Smart Home Systems – Real-time temperature sensing for smart devices
🔹 Scientific Research & Lab Experiments – Accurate thermal measurements for scientific studies
🔹 HVAC & Climate Control Systems – Precise monitoring for heating, ventilation, and air conditioning
🔹 Food Processing & Medical Equipment – Ensures optimal temperature conditions for critical processes
🔹 Automotive & Aerospace – Used for engine and environmental monitoring
How to Use the MAX31865 Module:
1️⃣ Connect the RTD Sensor: Attach a PT100 or PT1000 RTD sensor using a 2-wire, 3-wire, or 4-wire connection.
2️⃣ Connect to Microcontroller: Use SPI communication to interface with Arduino, Raspberry Pi, or other MCUs.
3️⃣ Power the Module: Provide 3.3V or 5V power supply.
4️⃣ Read Data & Calibrate: Retrieve temperature data from the sensor and apply calibration settings for precise readings.
5️⃣ Integrate into Your Project: Use in temperature monitoring, automation, or research applications.
Why Choose the MAX31865 RTD Sensor Module?
✅ Reliable & Accurate – Offers high stability and precision for professional applications.
✅ Easy to Interface – SPI communication ensures seamless connectivity with embedded systems.
✅ Versatile Applications – Suitable for industrial, scientific, IoT, and DIY projects.
✅ Compact & Durable Design – Built for long-term use in extreme temperature environments.
For more high-precision temperature sensors, explore our collection at ElectroWay Sensor Collection.
Upgrade your projects with the MAX31865 RTD Temperature Sensor Module and experience cutting-edge thermal measurement technology today! 🚀🔥
Package included:
1 x PT100 RTD Temperature Sensor Amplifier Module




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