Proximity Controls was started in 1965 out of a garage in Fergus Falls, MN. The first product line was the Ultra-Mag Series of diaphragm level controls. The Ultra-Mag offers a unique and patented magnetic drive that seals the switch compartment. Building on their experience with magnetic drives, Proximity expanded into position indicators in 1977 with the invention of the Mark Series. Like the Ultra-Mag, the Mark Series offers a patented magnetic drive that completely seals the switch compartment. Proximity Controls was acquired in 1989 by Dwyer Instruments of Michigan City, IN. Proximity Controls is still operated out of Fergus Falls today. Dwyer continues the innovative spirit of Proximity Controls by continually developing new products.

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® pressure gages, Photohelic® switch/gages, Rate Master® flowmeters, and Hi-Flow® valves. In addition to new product development, Dwyer has added to its success through several acquisitions and has achieved additional market recognition. Respected names such as Mercoid Controls, Love Controls, W.E. Anderson and Proximity Controls have created new markets and further build on the solid reputation that Dwyer has and continues to sustain. Our ability to successfully diversify demonstrates Dwyer's managed approach to the marketplace. This approach continues to maintain stability of the company, therefore providing a basis for positioning ourselves as a leader in providing knowledgeable, prompt, and courteous customer service. As our customer, prospect, or potential employee, we always want to hear from you. Please feel welcome to contact us anytime Phone: (219) 879-8000; Fax: (219) 872-9057; E-mail: info@dwyer-inst.com or visit us on the web www.dwyer-inst.com.

Dwyer Instruments Ltd was formed in the UK in January 1990 to ensure even better local availability, through conveniently held stock and weekly airfreight shipments, plus factory-trained technical back-up staff with experience and understanding of the needs of the UK markets. We always want to hear from you, please feel free to contact us anytime. Phone: (+44) (0)1494 461707; Fax (+44) (0)1494 465102; E-mail: sales@dwyer-inst.co.uk or visit us on the web www.dwyer-inst.co.uk.

Australia

Dwyer Instruments Pty Ltd was formed in Australia in December 1987 providing local availability, through conveniently held stock and weekly airfreight shipments. In addition there are factory trained technical back-up staff with experience and understanding of the needs of the Australia / New Zealand markets. Contact us to discuss your needs, Phone: 61 2 4272 2055; Fax: 61 2 4272 4055; E-mail: info@dwyer-inst.com.au or visit us on the web www.dwyer-inst.com.au.