MAX31865 RTD Temperature Sensor Module (PT100 / PT1000 Compatible)
The MAX31865 RTD module is a high-precision temperature measurement solution designed for use with PT100 and PT1000 resistance temperature detectors (RTDs). Built around the MAX31865 converter chip, this module accurately converts resistance readings into digital temperature data using an SPI interface.
It supports 2-wire, 3-wire, and 4-wire RTD configurations, making it highly flexible for industrial, laboratory, and embedded applications. With excellent noise rejection and precision, this module is ideal for projects requiring stable and accurate temperature monitoring.
🔧 Key Features
- 🌡️ Supports PT100 and PT1000 RTD sensors
- 🎯 High-accuracy temperature measurement
- 🔌 SPI digital interface for fast communication
- 🔄 Supports 2-wire, 3-wire, and 4-wire RTDs
- ⚡ Built-in ADC and signal conditioning
- 🛡️ Excellent noise filtering and fault detection
- 🤖 Compatible with Arduino, ESP32, Raspberry Pi
📊 Specifications
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Chipset: MAX31865
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Sensor Type: RTD (PT100 / PT1000)
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Interface: SPI
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Operating Voltage: 3.3V – 5V
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Temperature Range: Depends on RTD (typically -200°C to +850°C for PT100)
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Resolution: High-resolution ADC (15-bit)
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Wiring Support: 2-wire / 3-wire / 4-wire
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Conversion Type: Resistance to digital conversion
🧠 Applications
- 🏭 Industrial temperature monitoring
- 🔬 Laboratory instrumentation
- 🌡️ Precision temperature control systems
- 🔥 HVAC and thermal systems
- 🤖 Arduino / ESP32 / Raspberry Pi projects
📦 Package Includes
- 1 × MAX31865 RTD Sensor Module
⚠️ Important Notes
- RTD sensor (PT100/PT1000) not included
- Requires SPI pins for communication
- Use proper wiring configuration for best accuracy (3-wire or 4-wire recommended)
⭐ Why Choose This Module?
The MAX31865 module provides professional-grade temperature measurement with high accuracy and flexibility, making it ideal for demanding applications where standard sensors are not sufficient.
