HiLetgo DC 3-5V MAX6675 Module + K Type Thermocouple Temperature Sensor Thermocouple Sensor Set M6 Screw for Arduino: Amazon.com: Industrial & Scientific
Interface MAX6675 K-Type Thermocouple with Arduino
MAX6675 - Thermocouple module — Curious Scientist
K Type Thermocouple, MAX6675 & Arduino based Temperature Monitoring