1931年成立的美國Dwyer儀器儀表制造公司，在美國本土擁有12家工廠，提供壓力、溫度、液位、流量等現場參數的測量和控制多種儀器儀表，有著極高的穩定性、可重復性，切實的高精度，眾多國際認證，同時價格極強競爭力。旗下商標有：Dwyer、Mercoid，W.E.Anderson，Proximity Controls、Love Controls。Dwyer(德威爾)儀器儀表制造有限公司(Dwyer Instruments,Inc.)是一家對差壓、溫度、液位和流量的測量,變送和控制等方面擁有眾多精密儀器儀表產品并且在價格上有強競爭力的儀器儀表制造公司。產品廣泛應用于暖通，空調，食品，制藥，生物工程，智能樓宇，電廠，化工，水處理，環境監測，工業制造等領域。建立于1931年的美國德威爾儀器儀表制造有限公司(Dwyer Instruments,Inc.)在1955年時把制造總部從伊利諾斯州的芝加哥市遷移到印地安那州的密歇根市并建立起新的更大，更加完善的制造工廠和輔助設施。以后公司又在印地安那州的瓦卡瑞薩，南懷特里，肯斯卜瑞，沃爾肯特建了四個工廠—接著又在加利福尼亞州的阿納海姆，明尼蘇達州的費格斯 費爾斯，密蘇里州的堪薩斯城，和波多黎各的那加波建立了制造工廠。除了制造和銷售高質量和精密儀器儀表，德威爾(Dwyer)建立了標準并且完善的客戶服務系統——包括具有競爭力的價格，知識淵博，禮儀周到的技術支持來保證持續的長期的合作關系。
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.