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Dwyer
Precision Measurement Solutions – Advanced Instrumentation for Pressure, Temperature, Airflow, Level, and Differential Pressure. Reliable Analytical Instruments for Gas & Liquid Analysis, Air Quality Monitoring, and Environmental Safety.
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Measuring Instruments at Best Prices
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Dwyer- Precision Measurement Solutions
Dwyer- Precision Measurement Solutions

Dwyer Instruments was established in 1931 with a commitment to innovation in precision measurement and control solutions. Initially focused on pressure and flow measurement, the company expanded its portfolio to serve a wide range of industries, including HVAC, process automation, and environmental monitoring. Today, Dwyer is a leading manufacturer of high-quality instrumentation, offering products such as Air Velocity Meters, Anemometers, Carbon Dioxide (CO₂) Detectors, Humidity Meters, Pressure Gauges, Pressure Transmitters, and Calibration Equipment. Their solutions play a crucial role in ensuring efficiency, safety, and regulatory compliance across commercial and industrial applications.
Dwyer instruments provide accurate measurement and control solutions across industries such as oil and gas, pharmaceuticals, food and beverage, and utilities. Designed for applications including HVAC systems, clean water processes, hazardous environments, and wastewater management, Dwyer products enhance safety, efficiency, and regulatory compliance. With a focus on industrial automation, environmental monitoring, and process control, Dwyer ensures reliable performance across diverse operational needs.
We are dedicated to delivering Dwyer’s advanced Measurement & Control solutions across the UK, Ireland, and internationally. Our services include comprehensive, door-to-door shipping with all duties and taxes covered, ensuring a smooth, hassle-free delivery to your site. Wherever you are in the UK or Ireland, we provide dependable solutions designed to protect your industrial assets and boost operational efficiency.
We operate fully registered companies in both the UK and Ireland (EU), enabling us to efficiently manage shipping to all European Union member countries and non-EU destinations. Our pricing includes door-to-door delivery with all duties and taxes covered, ensuring a seamless and hassle-free experience for our customers.
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At qinstrument, we are committed to offering the best price guaranteed on all our Test & Measurement Equipments.

At qinstrument, we are committed to offering worldwide shipping to meet your needs wherever you are.
Dwyer Instruments Applications
Dwyer instruments are trusted across industries for their precision, reliability, and efficiency in measuring and controlling critical environmental and process variables. From HVAC and industrial automation to oil & gas, water treatment, and pharmaceuticals, Dwyer solutions enhance system performance, ensure regulatory compliance, and optimize energy efficiency. With a commitment to innovation and quality Dwyer continues to provide essential measurement and control solutions for diverse industrial and commercial applications.
Overview
In the HVAC industry, accurate measurement of airflow, pressure, temperature, and humidity is critical for optimizing energy efficiency, ensuring indoor air quality, and maintaining system performance. Dwyer’s solutions provide reliable monitoring and control for heating, ventilation, and air conditioning systems, helping to improve comfort, reduce energy consumption, and comply with industry standards.
Key Applications:
- Airflow Monitoring: Measuring and controlling air velocity in ducts, vents, and cleanrooms to ensure proper ventilation and system efficiency.
- Pressure Control: Maintaining optimal pressure differentials in HVAC systems, including cleanrooms and building automation applications.
- Humidity & Temperature Regulation: Monitoring humidity and temperature levels for climate control in commercial, industrial, and residential buildings.
- Filter & Duct Monitoring: Detecting pressure drops across air filters and ducts to ensure timely maintenance and system efficiency.
- CO2 & Air Quality Monitoring: Measuring carbon dioxide levels and air contaminants to improve indoor air quality and occupant safety.
Overview
In the oil and gas industry, accurate measurement of pressure, temperature, flow, and gas detection is crucial for ensuring safety, optimizing operations, and complying with strict environmental regulations. Dwyer’s instrumentation solutions provide reliable monitoring and control for critical oil and gas processes, enhancing efficiency and reducing operational risks.
Key Applications:
- Pressure Monitoring: Ensuring safe and efficient operation of pipelines, compressors, and storage tanks by accurately measuring pressure levels.
- Flow Measurement: Monitoring gas and liquid flow rates in upstream, midstream, and downstream processes to optimize production and distribution.
- Gas Detection: Detecting hazardous gases such as methane and hydrogen sulfide (H₂S) to enhance workplace safety and regulatory compliance.
- Filtration System Monitoring: Measuring differential pressure across filters to prevent clogging and maintain system efficiency.
- Emissions Monitoring: Tracking air quality and gas emissions to ensure compliance with environmental regulations.
Overview
In the water and wastewater treatment industry, accurate measurement of flow, pressure, and level is crucial for ensuring efficient operations, regulatory compliance, and environmental safety. Dwyer’s instrumentation solutions provide reliable monitoring and control, helping facilities optimize water usage, maintain system integrity, and improve treatment processes.
Key Applications:
- Flow Monitoring: Measuring water and wastewater flow rates to optimize treatment processes and distribution efficiency.
- Level Measurement: Ensuring accurate detection of liquid levels in storage tanks, reservoirs, and treatment basins to prevent overflow or system failures.
- Pressure Monitoring: Tracking pressure in pipelines and filtration systems to maintain optimal performance and detect potential leaks.
- Water Quality Analysis: Monitoring turbidity, pH, and dissolved oxygen levels to ensure compliance with environmental and health standards.
- Pump and Valve Control: Regulating pumps and valves to maintain consistent flow and pressure throughout treatment facilities.
Overview
In the pharmaceutical and biotechnology industries, precise measurement of pressure, temperature, humidity, and airflow is critical for ensuring product quality, maintaining sterile environments, and complying with strict regulatory requirements. Dwyer’s innovative solutions provide accurate and reliable monitoring for cleanrooms, laboratories, and production processes, helping manufacturers maintain consistency, safety, and efficiency.
Key Applications:
- Cleanroom Monitoring: Ensuring proper airflow, pressure differentials, and humidity levels to maintain sterile conditions and prevent contamination.
- Environmental Control: Measuring temperature and humidity in production and storage areas to ensure product stability and regulatory compliance.
- Airflow & Differential Pressure Monitoring: Maintaining controlled environments in laboratories, pharmaceutical manufacturing areas, and biosafety cabinets.
- Sterile Process Control: Monitoring pressure, flow, and temperature in sterilization and validation processes to ensure compliance with industry standards.
- Liquid Level Measurement: Accurately measuring fluid levels in bioreactors, mixing tanks, and pharmaceutical storage systems for consistent production.
Overview
In the food and beverage processing industry, precise measurement of pressure, temperature, humidity, and flow is crucial for maintaining product quality, safety, and regulatory compliance. Dwyer’s advanced instrumentation ensures accurate monitoring and control in critical processing environments, helping manufacturers optimize efficiency and meet stringent food safety standards.
Key Applications:
- Hygienic Process Monitoring: Measuring pressure and temperature in food processing lines to ensure sanitary conditions and product integrity.
- Humidity & Air Quality Control: Maintaining optimal humidity levels and air quality in storage and production areas to prevent contamination.
- Flow Measurement: Ensuring accurate flow control in liquid and gas applications, such as beverage production and dairy processing.
- Refrigeration & Cold Storage Monitoring: Tracking temperature and pressure in refrigeration units to preserve food freshness and prevent spoilage.
- Cleanroom & Packaging Environment Control: Monitoring air pressure and particulate levels in cleanrooms and packaging areas to maintain hygiene standards.
Overview
In the industrial automation and manufacturing industry, precise measurement and control of pressure, airflow, temperature, and humidity are crucial for optimizing production efficiency, ensuring worker safety, and maintaining product quality. Dwyer’s solutions provide reliable instrumentation for monitoring and controlling critical processes in automated manufacturing environments.
Key Applications:
- Process Control & Monitoring: Measuring pressure, temperature, and flow in automated systems to ensure consistent and efficient operation.
- Airflow & Environmental Control: Monitoring airflow, humidity, and differential pressure in controlled environments to maintain optimal production conditions.
- Machine & Equipment Safety: Using pressure and flow sensors to prevent equipment failures and ensure workplace safety.
- Pneumatic Systems Optimization: Regulating air pressure in pneumatic systems to improve energy efficiency and system reliability.
- Cleanroom & Contamination Control: Ensuring precise pressure control in clean manufacturing environments to meet strict industry standards.

At qinstrument, we are committed to offering the Genuine Test & Measurement Equipments.
Dwyer Available Product Part Numbers with Categories
Air Velocity Meters
Series 400 – Air Velocity Meter |
Series 641 – Air Velocity Transmitter |
Series 641RM – Air Velocity Transmitter with Remote Probe |
Series AVU – Air Velocity Transmitter |
Series AVUL – Air Velocity Transmitter |
Series 471B – Thermo-Anemometer |
Series 473B-1 – Vane Thermo-Anemometer |
Series 8904 – Thermo-Anemometer |
Series 9671 – Thermo-Anemometer |
Series EMMA – Environmental Monitor |
Anemometers
471B-1 – Thermo-Anemometer Test Instrument |
473B-1 – Vane Thermo-Anemometer |
8904 – Integral Vane Thermo-Anemometer |
Renewable Energy
471B-1 – Thermo-Anemometer Test Instrument |
473B-1 – Vane Thermo-Anemometer |
8904 – Integral Vane Thermo-Anemometer |
Fluid Control & Valves
2000VA32-230-QS – 1/2″ Hi-Flow Control Valve with Bronze Body |
2001VA32-230-QS – 3/4″ Hi-Flow Control Valve with Bronze Body |
2002VA32-230-QS – 1″ Hi-Flow Control Valve with Bronze Body |
2003VA32-230-QS – 1.25″ Hi-Flow Control Valve with Bronze Body |
2004VA32-231-QS – 1.5″ Hi-Flow Control Valve with Bronze Body |
2005VA32233 – 2″ Hi-Flow Control Valve with Bronze Body and Stainless Steel Trim |
Industrial Automation
Series 2000 Magnehelic® Differential Pressure Gag |
Series 641 Air Velocity Transmitter |
Series AVU Air Velocity Transmitter |
Series 657 Relative Humidity/Temperature Transmitter |
Series WD3-LP-D2-10 Water Leak Detector |
Series A-605 Air Filter Kit |
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Why Choose Qinstrument?
Best Prices Guaranteed: We offer the best prices online for a wide range of Dwyer Air Velocity Meters, Carbon Dioxide (CO2) Detectors & Anemometers ensuring you get top-quality products at unbeatable value.
Efficient Lead Times: While some Dwyer instruments may have specific lead times, we strive to reduce them as much as possible. Our dedicated team ensures transparent communication regarding product availability and delivery schedules, keeping you well-informed at every step so you can plan your operations with confidence and avoid any unexpected delays.
Worldwide Shipping: Whether you’re located in the UK, Ireland (EU) or internationally, our extensive shipping network guarantees fast and reliable delivery of Dwyer Instruments. We offer door-to-door service, covering all duties and taxes, so your equipment arrives hassle-free, no matter where you are. With a focus on efficient logistics, we ensure timely shipments to meet your operational needs.


About Qinstrument
Qinstrument provides top-tier test and measurement solutions from renowned brands like Bently Nevada, Druck, Fluke, Rosemount, Emerson, Net Safety, Teledyne FLIR, and Panametrics. We serve the UK and EU, offering hassle-free delivery without any additional taxes or duties, ensuring seamless service across all regions.