National Control Devices (NCD) specializes in high-quality IoT hardware solutions for various industries. Known for their reliability and precision, NCD products include relay controllers, current sensors, and other interface devices that offer robust performance for industrial automation and monitoring needs. With a strong emphasis on customization, NCD ensures that their products meet the unique requirements of each client. All devices are designed and manufactured in the USA, adhering to the highest quality standards to guarantee optimal functionality and customer satisfaction.