Dwyer
Air Velocity Meters, Pressure Transmitters & Pressure Gauges
- Best Price Guaranteed
- Door to Door Delivery
- Fast Shipping
About Dwyer
Founded in 1931 by Herbert Dwyer
The Dwyer brand is recognized for its precision measurement and control solutions across a wide range of industries. It is particularly prevalent in HVAC, manufacturing, and process control industries, where accurate measurement of pressure, flow, temperature, and level is crucial for maintaining operational efficiency and safety. Dwyer products are also widely used in energy, water treatment, and food processing sectors. Known for its durable and easy-to-use instruments, Dwyer offers a range of devices that are trusted by professionals globally.
Founded in 1931, Dwyer Instruments has earned a reputation for providing high-quality, reliable, and cost-effective products across a wide range of industries, including HVAC, chemical, food processing, oil and gas, and pollution control. The company has further strengthened its position through strategic acquisitions of respected brands like Mercoid Controls, Love Controls, W.E. Anderson, and Proximity Controls. Among Dwyer’s best-selling products are its Pressure Gauges, Air Velocity Meters, and Pressure Transmitters and Transducers. These products are essential for precise measurement and control of pressure, airflow, and fluid flow, widely used in industrial and HVAC applications. Known for their durability and accuracy, these products continue to be trusted by professionals across various sectors for their consistent and reliable performance.
We are committed to delivering Dwyer's cutting-edge control instrumental solutions across the USA and internationally. Our services include comprehensive door-to-door shipping, covering all duties and taxes, ensuring seamless delivery to your operations. No matter where you're located in the USA or beyond, we provide reliable solutions to safeguard your industrial assets and enhance operational efficiency.
Buy Dwyer Instruments in USA at
Competitive Prices!
- Best Price Guaranteed
- Door to Door Delivery
- Fast Shipping
Dwyer Categories
Dwyer Instruments offers a diverse range of products, including Pressure Measurement devices, Flow Meters, Temperature and Humidity sensors, Gas detectors, and Air Velocity Meters. These solutions are designed to enhance efficiency and safety in industries such as HVAC, manufacturing, and energy. Dwyer's reliable, precise products support a wide range of industrial applications.

Air Velocity Meters
Dwyer’s Air Velocity Meters provide precise and reliable measurement of airflow in ducts and ventilation systems. They are ideal for HVAC applications, offering real-time readings for efficient airflow management.

Carbon Dioxide (CO2) Detectors
Dwyer’s CO2 Detectors monitor Carbon Dioxide levels in indoor environments to ensure air quality and safety. These devices are essential for ventilation control in commercial, industrial, and residential spaces.

Clamp Meters
Dwyer’s Clamp Meters provide accurate current measurements without the need to disconnect wires, making them ideal for electrical troubleshooting and maintenance. These meters offer quick current readings in both AC and DC circuits.

Combustion Analyzers
Dwyer’s Combustion Analyzers are designed to measure gas emissions and combustion efficiency in boilers and furnaces. These tools help ensure compliance with environmental regulations and improve energy efficiency.

Control Panel Enclosures
Dwyer’s Control Panel Enclosures offer protection for electrical and control components in harsh industrial environments. They are built to withstand extreme conditions while ensuring secure and organized operation.

Data Loggers
Dwyer’s Data Loggers collect and store environmental data, such as temperature, humidity, and pressure. These devices are essential for tracking and analyzing performance over time in industrial and laboratory settings.

Electrical Calibrators
Dwyer’s Electrical Calibrators ensure the accuracy and precision of electrical measurement instruments. They are used for calibrating a wide range of devices, from voltage and current meters to resistance testers.

Flow Meters
Dwyer’s Flow Meters measure the flow rate of gases and liquids in pipelines and systems. Their high accuracy makes them ideal for industries such as HVAC, water treatment, and chemical processing.

Gas Detectors
Dwyer’s Gas Detectors monitor and detect hazardous gases in industrial and commercial environments. These devices ensure safety by alerting personnel to the presence of harmful gases like methane, CO2, and oxygen.

Humidity Meters
Dwyer’s Humidity Meters measure the moisture content in the air, helping control environmental conditions in HVAC and industrial applications. These devices ensure optimal humidity levels for process control and product preservation.

Indoor Air Quality (IAQ) Meters
Dwyer’s IAQ Meters measure key air quality parameters such as CO2, temperature, and humidity. These meters are essential for maintaining healthy and comfortable indoor environments.

Leak Detectors
Dwyer’s Leak Detectors identify gas and fluid leaks in pipes and systems. These devices help prevent costly damages and ensure system integrity in industries like oil and gas, HVAC, and manufacturing.

Multimeters
Dwyer’s Multimeters Measure electrical parameters such as voltage, current, and resistance. They are versatile tools used in industrial, electrical, and maintenance applications for troubleshooting and diagnostics.

Pressure Calibrators
Dwyer’s Pressure Calibrators are used to calibrate pressure measurement instruments to ensure accurate readings. These devices are essential in testing and validating pressure systems in industries like manufacturing and energy.

Pressure Controllers
Dwyer’s Pressure Controllers regulate pressure levels within industrial systems. These devices ensure consistent and accurate pressure control in applications like HVAC systems, hydraulic systems, and compressors.

Pressure Gauges
Dwyer’s Pressure Gauges provide accurate pressure readings for gases, liquids, and vapors. These gauges are widely used in various industries such as manufacturing, water treatment, and chemical processing.

Pressure Indicators
Dwyer’s Pressure Indicators visually display pressure readings in industrial systems. These devices are crucial for monitoring pressure conditions and ensuring safe and optimal system performance.

Pressure Switches
Dwyer’s Pressure Switches automatically activate or deactivate systems based on pressure changes. These switches are vital for protecting equipment from overpressure or underpressure conditions.

Pressure Transmitters
Dwyer’s Pressure Transmitters convert pressure readings into electrical signals for remote monitoring and control. These transmitters are essential for precision measurement in industries such as oil and gas, HVAC, and manufacturing.

Tachometers
Dwyer’s Tachometers measure the rotational speed of machinery and equipment. These devices are vital for monitoring performance and ensuring safe operation in various applications, from motors to pumps.

Temperature Switches
Dwyer’s Temperature Switches regulate temperature by turning devices on or off based on preset limits. These switches are widely used for thermal management in HVAC systems, industrial processes, and machinery.

Temperature Transmitters
Dwyer’s Temperature Transmitters convert temperature data into electrical signals for process control. These transmitters are used in a wide range of industries to ensure accurate temperature monitoring in critical systems.

Thermometers
Dwyer’s Thermometers provide precise temperature measurements in various applications, including HVAC, food processing, and laboratory environments. They are designed for accuracy and durability in both industrial and field settings.
212 Instruments is your reliable source for all
Dwyer Instruments in USA!
Best Prices Guaranteed with Worldwide Shipping!
Dwyer Applications
Dwyer Instruments' products are widely used across various industries for precise measurement and control of critical parameters such as pressure, temperature, flow, and humidity.Whether in air quality control, fluid flow measurement, or pressure monitoring, Dwyer’s reliable products provide accurate data for process optimization, equipment performance, and operational efficiency across a diverse range of applications.
Overview
In the oil and gas industry, precise measurement and control of pressure, temperature, and flow are critical for ensuring safety, efficiency, and regulatory compliance. Dwyer provides reliable solutions for monitoring and controlling key parameters in upstream, midstream, and downstream processes, supporting the industry’s demanding operational needs.
Key Applications
- Flow Measurement: Dwyer offers advanced flow meters that ensure accurate measurement of liquids and gases, optimizing pipeline operations and ensuring reliable transportation of oil and gas.
- Pressure and Temperature Control: Dwyer pressure transmitters and temperature regulators help maintain consistent operational conditions in oil rigs, pipelines, and refineries, preventing equipment damage and enhancing safety.
- Safety and Shutdown Systems: Dwyer pressure switches and safety devices are used for emergency shutdown systems, ensuring safety during critical operations and protecting personnel and assets.
Overview
In the HVAC industry, accurate measurement and control of airflow, pressure, and temperature are crucial for maintaining system efficiency and ensuring comfort and safety. Dwyer Instruments offers reliable solutions to monitor and optimize HVAC systems, helping to improve energy efficiency and air quality in commercial and residential applications.
Key Applications
- Airflow and Velocity Measurement: Dwyer’s air velocity meters and flow sensors help monitor and control airflow, ensuring efficient ventilation and air distribution in HVAC systems.
- Pressure Monitoring: Dwyer’s pressure gauges and transmitters provide accurate pressure readings, ensuring proper operation of heating and cooling systems and preventing system malfunctions.
- Temperature Control: Dwyer’s temperature sensors and switches are used to regulate and maintain consistent temperatures, improving energy efficiency and occupant comfort in heating, cooling, and ventilation systems.
Overview
In the manufacturing industry, precise measurement and control of pressure, temperature, and flow are essential for optimizing production processes, ensuring safety, and maintaining high-quality standards. Dwyer Instruments provides reliable solutions to monitor and control critical parameters in industrial applications, helping manufacturers improve efficiency and meet regulatory standards.
Key Applications
- Pressure Monitoring: Dwyer’s pressure gauges, transmitters, and switches ensure consistent pressure control in manufacturing processes, preventing system failures and enhancing operational safety.
- Flow Measurement: Dwyer’s flow meters and controllers help monitor the flow of liquids and gases, ensuring smooth operations and accurate material handling in manufacturing lines.
- Temperature Control: Dwyer’s temperature sensors and switches are used to maintain precise temperature regulation in industrial processes, ensuring product consistency and quality during production.
Overview
In the chemical processing industry, accurate measurement and control of pressure, temperature, flow, and gas concentrations are critical for ensuring safety, operational efficiency, and product quality. Dwyer Instruments offers reliable measurement solutions that help monitor and optimize these critical parameters, supporting the safe and efficient operation of chemical plants.
Key Applications
- Flow Measurement: Dwyer’s flow meters and controllers ensure precise liquid and gas flow measurements, optimizing chemical reactions and ensuring consistent production rates.
- Pressure Monitoring: Dwyer’s pressure gauges, transmitters, and switches help maintain safe pressure levels in pipelines and reactors, preventing accidents and equipment damage.
- Gas Detection: Dwyer’s gas detectors are used to monitor hazardous gases in chemical plants, ensuring worker safety and compliance with environmental regulations.
- Temperature Control: Dwyer’s temperature sensors and controllers regulate temperatures in chemical processes, ensuring product consistency and preventing overheating or system failures.
Overview
In the food and beverage industry, precise measurement and control of pressure, temperature, and flow are essential to ensure product quality, safety, and regulatory compliance. Dwyer Instruments offers reliable solutions to monitor and optimize critical parameters in food production, processing, and packaging, helping to maintain high standards in this highly regulated industry.
Key Applications
- Flow Measurement: Dwyer’s flow meters and controllers ensure accurate liquid and gas flow control in food processing lines, optimizing production and preventing waste.
- Temperature Control: Dwyer’s temperature sensors and controllers are used to maintain consistent temperatures during food production and storage, ensuring food safety and quality.
- Pressure Monitoring: Dwyer’s pressure gauges and transmitters provide accurate pressure measurements, helping to maintain proper pressure levels in processing systems and packaging equipment.
Overview
In the energy and power generation industry, accurate measurement and control of pressure, flow, temperature, and gas concentrations are essential to ensure operational efficiency, safety, and regulatory compliance. Dwyer Instruments provides reliable solutions for monitoring and optimizing these critical parameters, supporting the smooth operation and safety of energy production systems.
Key Applications
- Flow Measurement: Dwyer’s flow meters help ensure accurate measurement of liquids and gases in power plants, optimizing energy generation processes and reducing operational costs.
- Pressure Monitoring: Dwyer’s pressure gauges and transmitters ensure that pressure levels are maintained safely in boilers, turbines, and pipelines, preventing failures and enhancing system reliability.
- Gas Detection: Dwyer’s gas detectors monitor for hazardous gases in energy production facilities, ensuring worker safety and environmental compliance.
- Temperature Control: Dwyer’s temperature sensors and controllers help maintain optimal temperatures for efficient energy generation, preventing equipment overheating and improving system performance.
Overview
In the pharmaceutical industry, precise measurement and control of pressure, temperature, flow, and humidity are critical to maintaining product quality, ensuring regulatory compliance, and safeguarding patient safety. Dwyer Instruments offers reliable solutions for monitoring and optimizing key parameters across pharmaceutical production, research, and packaging processes.
Key Applications
- Flow Measurement: Dwyer’s flow meters ensure precise measurement of gases and liquids, optimizing pharmaceutical manufacturing processes and ensuring consistency in drug production.
- Pressure Monitoring: Dwyer’s pressure gauges and transmitters help monitor and control pressure in reactors, cleanrooms, and packaging lines, ensuring safety and process efficiency.
- Temperature Control: Dwyer’s temperature sensors and controllers are used to maintain strict temperature control during pharmaceutical production and storage, preserving the integrity of sensitive products.
- Humidity Monitoring: Dwyer’s humidity meters are essential for maintaining the right environmental conditions in cleanrooms and storage areas, ensuring product stability and compliance with regulatory standards.
- Air Quality Monitoring: Dwyer’s gas detectors and monitors help measure and detect hazardous gases such as CO2, CO, and VOCs, ensuring air quality compliance in industrial, commercial, and outdoor environments.
- Temperature and Humidity Control: Dwyer’s temperature and humidity meters are used in environmental monitoring systems to track and maintain optimal conditions for air quality and ecosystem health.
- Flow Measurement: Dwyer’s flow meters are used to measure air and gas flows, ensuring accurate data for environmental impact assessments and regulatory reporting.
- Pressure Monitoring: Dwyer’s pressure gauges and transmitters are crucial for monitoring air pressure in environmental control systems, supporting safety and effective ventilation management.
- Airflow Measurement: Dwyer’s air velocity meters and flow meters are used to measure airflow in automotive testing environments, ensuring accurate performance evaluation and optimizing engine systems.
- Pressure Monitoring: Dwyer’s pressure gauges and transmitters help monitor tire pressure, fuel systems, and exhaust systems, enhancing vehicle safety and performance.
- Temperature Control: Dwyer’s temperature sensors and controllers are crucial in maintaining optimal temperature conditions during the manufacturing and testing of automotive parts and systems.
- Gas Detection: Dwyer’s gas detectors are employed in automotive plants to monitor hazardous gas emissions, ensuring a safe working environment and compliance with environmental regulations.
Get in Touch with us
Have questions or need assistance selecting the right Dwyer Instruments?
Our team of experts is here to help! Whether you’re looking for more information, technical support, or a custom solution, we’re just a message away. Feel free to contact us for inquiries, product details, or any support you may need.

Contact Details
For USA and International Sales
Request a Quote
Why Choose 212 Instruments?
Best Prices Guaranteed: We offer the best prices online for a wide range of Dwyer instruments, including Air Velocity Meters, Pressure Transmitters & Pressure Gauges 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 USA 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.







