The NIBCO 1010203 is a supervisory switch designed for industrial applications, featuring two switch indicators for enhanced monitoring. This device is constructed with high-quality materials to ensure durability and reliability in demanding environments. It is designed to comply with industry standards, providing peace of mind for system operators. The supervisory switch is ideal for use in fire alarm systems and other critical applications, ensuring that any changes in system status are promptly indicated, making it a vital component for safety and efficiency.