Functional Devices, Inc., located in the United States of America, has been designing and manufacturing high-quality electronic devices since 1969. Our mission is to enhance lives in buildings and beyond. We do so by designing and manufacturing reliable, high-quality products for the building automation industry. Our products include RIB® (Relay in a Box®) relays, current sensors, power supplies, lighting controls, and more. We test 100% of our products, leading to less than 1 out of every 16,000 products experiencing a failure in the field. Simply put, we provide customers confidence and peace of mind in every box.