Functional Devices, Inc.

Company record

Functional Devices, Inc. both manufactures and distributes a broad portfolio of control devices. Its offerings encompass lighting‑control solutions—including shunt relays, ballast fixture controllers and a range of wireless devices—alongside building‑automation and HVAC components such as multi‑purpose relays, current sensors, power controls, power supplies and transformers. Energy‑management products feature evaporator‑fan controllers and room‑energy controllers. The wireless product line includes occupancy sensors, two‑way transceivers, wireless current sensors and combined current‑sensor/relay units. All products are produced in the United States.

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