MAX6675 K-Type Thermocouple Sensor Module

MAX6675 K-Type Thermocouple Sensor Module — High Temperature SPI Interface

The MAX6675 K-Type Thermocouple Module is a high-precision temperature sensing solution designed for measuring extreme temperatures up to 1024C. This module uses the MAX6675 thermocouple-to-digital converter to accurately read data from a K-type thermocouple and output it via an SPI interface, making it ideal for Arduino, ESP32, and other microcontroller-based systems.

With built-in cold junction compensation and 12-bit digital output, this module ensures stable and reliable temperature readings in demanding environments.

Key Features

• High Temperature Measurement — Supports readings up to 1024C
• K-Type Thermocouple Interface — Widely used and highly durable sensor type
• 12-bit Digital Output — Accurate and stable readings
• Cold Junction Compensation — Improves measurement accuracy
• SPI Communication — Easy integration with microcontrollers
• Wide Voltage Range — Works with both 3.3V and 5V systems
• Compact Design — Ideal for embedded and space-limited projects

Technical Specifications

• Sensor Type: K-Type Thermocouple (not included unless specified)
• Converter IC: MAX6675
• Temperature Range: 0C to 1024C
• Resolution: 0.25C
• Output Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 3.0V — 5.5V DC
• Working Current: ~50mA
• Operating Temperature (Module): -20C to +85C
• Module Size: 20.3 x 20.3 x 5mm

Applications

• Industrial temperature monitoring
• Kilns, furnaces, and ovens
• 3D printer hotend temperature sensing
• HVAC and thermal systems
• DIY and Arduino projects
• Educational electronics kits

Important Notes

• Requires a K-type thermocouple probe (sold separately if not included)
• The MAX6675 is not compatible with MAX31855 — ensure correct code/library is used
• Designed for high-temperature measurement applications

Why Choose the MAX6675 Module?

The MAX6675 module offers a reliable and accurate solution for high-temperature sensing, making it perfect for both industrial and DIY applications. Its simple SPI interface, wide voltage compatibility, and precise readings make it a popular choice for engineers, makers, and students.