Dwyer公司是一家美国仪器仪表制造公司，全程对差压、温度、压力、液位和流量的测量，变送和控制等方面拥有众多精密仪器仪表的制造公司。Dwyer公司建立与1931年，在1955年时把制造总部从伊利诺斯州的芝加哥迁移到印第安纳州的密歇根市并建立起新的更大，更加完美的制造工厂和辅助设施。之后公司又在印第安纳州的瓦卡瑞萨，南怀特里，肯斯卜瑞，沃尔肯特建立了四个工厂，接着又在印第安纳州的阿纳海姆，明尼苏达州的费格斯，费尔斯，密苏里州的堪萨斯城，和波多黎各的那加波建立了制造工厂。

Dwyer公司独家拥有许多著名的商标系列，Magnehelic、Photohelic微差压控制仪表和Spirahelic压力控制仪表，Rate-Master、Mini-Master和Visi-Float流量仪表，Slack-Tube和Flex-Tube微压计，Dwyer超微差压开关，还有Flotect流量/液位开关，Hi-Flow控制阀，Self-Tune温度控制仪和Iso-Verter信号转换/隔离器等等。这些产品都是Dwyer公司拥有的四个部门制造生产，Mercoid， W.E.Anderson，Proximity Controls和Love Controls。

Dwyer is a global leader in designing and manufacturing innovative Controls, Sensors and Instrumentation solutions to the HVAC and Process Automation markets.

We work tirelessly to get it right. That's why Dwyer holds over 650 technical patents and that number grows every year. We are an enthusiastic group of people headquartered in Michigan City, Indiana with satellite locations around the globe. We take great pride in the intellect and integrity of our employees who are passionate about the work we do, the products we develop and the industries we serve.

Most importantly, we value the expertise and skill of the people that use our products in the field every day. We respect that our customers have a choice and we are honored that they choose the best products, manufactured by Dwyer, as a reflection of their own high standards in delivering the highest level of quality, and reliability.