Temperature control is a critical requirement inmany industrial heating applications where accurate sensing and reliable power regulation are necessary for system stability and safety. This paper presents the design and implementation of a microcontroller-based temperature monitoring and control system utilizing a thermocouple sensor and dual-heater regulation. The proposed system employs a thermocouple temperature sensor interfaced through a thermocouple-to-digital converter toobtain accurate temperature measurements. A microcontroller processes the temperature data and compares it with a user-defined setpoint to perform closed-loop temperature control.The system integrates a user interface consisting of key switches for parameter adjustment and a four-digit seven-segment display for real-time visualization of temperature values and system status. Heater control is achieved through optoisolated triac driver circuits that enable safe switching of ACpower to the heating elements. Additional peripheral modules including LED indicators, a buzzer alarm circuit, and a cooling fan control mechanism are incorporated to enhance operational feedback, safety, and thermal stability. The designed architecture ensures electrical isolation between the low-voltage control circuitry and high-voltage heater loads,improving system reliability and user safety. Experimental evaluation demonstrates that the system provides stable temperature regulation, responsive user interaction, and reliable heaterswitching performance. The proposed design offers a cost-effective and scalable solution suitable for industrial heating systems, laboratory equipment, and temperature-sensitive process control applications.