Dwyer Instruments Inc.

102 Indiana Hwy. 212, P.O. Box 373
Michigan City, IN 46361-0373

About Dwyer Instruments Inc.

Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control. New applications are discovered daily through a cooperative effort between Dwyer and its customers. It has been these relationships with our customers that allow us to continue to develop market demand products and further our success from leading established brand names such as the Magnehelic® differential pressure gages, Photohelic® pressure switch/gages, Rate Master® flowmeters, and Hi-Flow® valves.

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Products by Dwyer Instruments Inc.

By Dwyer Instruments Inc.

DDB and DDD Series Direct Coupled Actuators are non-spring return actuators that are perfect for positioning of dampers and valves in HVAC systems. DDB actuators are designed to accept floating control signals and come in a variety of power supplies. DDD actuators are designed to accept 4 to 20... Read more »

By Dwyer Instruments Inc.

DDA and DDC Series Direct Coupled Actuators are non-spring return actuators that are perfect for positioning of dampers and valves in HVAC systems. DDA actuators are designed to accept floating control signals and come in a variety of power supplies. DDC actuators are designed to accept 4 to 20... Read more »

By Dwyer Instruments Inc.

The ATEX approved Series AT2DH3 Digihelic® Differential Pressure Controller is a 3 in 1 instrument possessing a digital display gage, control relay switches, and a transmitter with current output. Combining these three features allows the reduction of several instruments with one product, saving... Read more »

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