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Amazon.com: 12V DC Digital Temperature Controller, ẈỊFỊ APP Control High Temperature Control Module 18°C~999°C 24V Thermostat Control Switch Board with 10A One-Channel Relay Waterproof K-Type Thermocouple Probe : Industrial & Scientific
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Controlling a Relay using Temperature (Temperature Controlled Relay with Thermocouple, Arduino, LCD) - YouTube
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