Dwyer

Dwyer

Dwyer Instruments is an American manufacturer of test and measurement instrumentation specializing in pressure, flow, level, and environmental parameter measurement. Founded in 1931 and headquartered in Michigan City, Indiana, Dwyer has built a broad product range serving heating, ventilation, and air conditioning (HVAC), building automation, industrial process control, and laboratory applications. The company is particularly well known for its differential pressure gauges, pitot tubes, and airflow measurement products used extensively in HVAC commissioning and air handling system balancing.

In addition to airflow and pressure instruments, Dwyer offers a wide range of electrical measurement tools, data loggers, and process control accessories. The company serves both the commercial building services market and more demanding industrial process environments, offering products suited to a variety of process media and installation conditions.

Key Product Lines

• Differential Pressure Gauges — instruments for measuring pressure difference across filters, ducts, and process equipment in HVAC and industrial systems
• Pitot Tubes and Airflow Meters — velocity and volumetric flow measurement tools for ductwork and open-air applications
• Digital and Analog Pressure Gauges — process pressure measurement for a wide range of gases and compatible liquids
• Multimeters and Electrical Testers — handheld and bench-top instruments for general electrical troubleshooting and measurement
• Calibration Kits — portable calibration tools for pressure measurement instruments used in the field

Industries Served

Dwyer Instruments products are used in HVAC and building automation, industrial manufacturing, food and beverage processing, water and wastewater treatment, pharmaceuticals, oil and gas, and general laboratory measurement. Their differential pressure products are a recognized standard in commercial HVAC design, commissioning, and maintenance work.