The RX Direct Current Millivolt Thermostat features a 24" lead, making it an excellent choice for millivolt heating systems. This thermostat is designed to provide precise temperature control in gas appliances, ensuring efficient operation. Its compact design allows for easy installation in tight spaces, while the durable materials used in its construction ensure reliability and longevity. This thermostat is compatible with various heating systems, including wall furnaces and gas logs, and meets industry standards for safety and performance, making it a trusted choice for residential and commercial applications.