The Rx Direct Current Millivolt Thermostat features a 24" length, designed for precise temperature control in various applications. This thermostat is ideal for millivolt systems, ensuring reliable performance in heating and cooling environments. Constructed with high-quality materials, it meets industry standards for safety and efficiency. Its compact design allows for easy installation in tight spaces, making it suitable for both residential and commercial use. The thermostat is compatible with a range of systems, providing versatility in temperature management.