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. 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.

  • Typical Applications
  • Specifications/Prices
  • Ordering Information

  • Brand New Products at Dwyer

  • Engineering and Typical Applications Handbook
  • Easy to follow Diagrams

  • Pressure, Level and Temperature
  • Many Options Available
  • Many Agency Approvals

  • Temperature/Process Controls and Sensors
  • Specifications/Price

  • Position & Level Indicators/Switches/Transmitters
  • Proximity Sensors

  • Dust Collection
  • Pneumatic Conveying Controls
  • Pressure Instrumentation

  • Building Automation
  • Water Cooling Systems
  • Test Equipment

  • Process Valves and Valve Controls

  • Guide to all your Magnehelic Accessories

  • Guide to BAS
  • Applications
  • Products Applied

  • Guide to Dust Collection & Pneumatic Conveying
  • Applications
  • Product Applications

  • Guide to Wastewater Systems
  • Applications
  • Products Applied

  • Select the Transmitter for Your Application

  • Select the Flow Switch or Transmitter for Your Application

  • Select the Flowmeter for Your Application

  • Select the Level Switch for Your Application

  • Select the Pressure Gage for Your Application

  • Select the Pressure Switch for Your Application

  • Select the Temperature Instrument for Your Application

  • Select the Industrial Thermometer for Your Application

  • Dwyer Company Profile
  • Overview of Dwyer’s Product Line

  • Guide to Pulse Valve Selection for Dust Collectors