Dwyer Instruments Inc.

Dwyer Instruments Inc., founded in 1931, manufactures a broad range of competitively priced, quality precision instruments for measuring, transmitting, and controlling pressure, temperature, level, and flow. Many of these instruments are widely known by their individual brand names, such as Magnehelic and Spirahelic pressure gages, Photohelic switch/gages, Rate-Master, Mini-Master and Visi-Float Flowmeters, Slack-Tube and Flex-Tube manometers, and Dwyer pressure switches. Divisions of Dwyer Instruments are Mercoid, W. E. Anderson, Proximity Controls and Love Controls.


102 Indiana Hwy 212
P O Box 373
Michigan City, IN 46361
Toll-free: 800-872-9141
Phone: 219-879-8000
Fax: 219-872-9057

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