Pressure Measurement | McMaster-Carr

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System of Measurement

Pipe Size

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UN/UNF (SAE Straight)

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Measurement Unit

Centimeters of Mercury

Kilograms per Square Centimeter

Kilopascals

Megapascals

Millibars

Millimeters of Mercury

Ounces per Square Inch

Maximum Pressure, psi

Measures

Black Globe Temperature

Blood Pressure

Dew Point

Differential Pressure

Dial Diameter

Dial Type

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Connection Material

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Gender

Connects To

Display Type

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Pressure Numeric Increments

REACH

Export Control Classification Number (ECCN)

2B999

EAR99

Maximum Process Temperature

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Exempt

Maximum Continuous Pressure

RoHS

Compliant with Exemptions

Not Compliant

Maximum Environment Temperature

5,913 Products

Most Likely Products

Pressure Transmitters

Send pressure readings to controllers and remote displays

370 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

28 products

Differential Pressure Sensors

Attach to gauges and switches to detect static pressure changes in air-handling equipment

5 products

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

41 products

Pressure Paper

Measures pressing forces in equipment by creating an instant, permanent image of pressure variation

42 products

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

70 products

All Results

Fluid Handling

Pressure Transmitters

Send pressure readings to controllers and remote displays

370 products

Differential Pressure Sensors

Attach to gauges and switches to detect static pressure changes in air-handling equipment

5 products

Differential Pressure Gauges

Display the difference in pressure between two points in your air and fluid systems

41 products

Differential Pressure Transmitters

Relay pressure changes in heating, cooling, and pumping systems to controllers and remote displays

70 products

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

290 products

Pressure and Vacuum Transmitters

Convert pressure and vacuum measurements into a signal sent to remote displays and controllers

97 products

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

16 products

Differential Pressure and Vacuum Gauges

Show changes in pressure and vacuum to monitor fans, blowers, and filters

8 products

Pressure Test Gauges

Check and calibrate pressure gauges, transmitters, and equipment to maintain accuracy

60 products

Vacuum Gauges

Take vacuum readings in pumps, packaging equipment, and suction lines

107 products

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

3 products

Pressure and Vacuum Gauges

Measure pressure and vacuum in air and fluid lines, pumps, and refrigeration systems

42 products

Pressure Test Fittings

Create a temporary connection point for gauges and other testing equipment

28 products

Pressure Switches

Activate controls, set off alarms, and power equipment when a set pressure is reached

308 products

Differential Pressure Switches

Activate controls and alarms when the pressure difference between process lines exceeds a setpoint

53 products

Vacuum Switches

Activate controls, set off alarms, and power equipment when a set vacuum is reached

26 products

Pressure and Vacuum Switches

Activate controls, set off alarms, and power equipment when a set pressure or vacuum is reached

6 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids though a line

11 products

Test Pumps

Force air or liquid through your system to look for leaks; often called hydrostatic test pumps

24 products

Flow Transmitters

Send flow rate measurements to PLCs, data loggers, and remote displays

2 products

Flowmeters

Measure the flow rate of a liquid or gas

15 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

9 products

Measuring and Inspecting

Pressure Paper

Measures pressing forces in equipment by creating an instant, permanent image of pressure variation

42 products

Barometers

Measure atmospheric pressure changes

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

7 products

Tire Pressure Test Gauges

Calibrate the accuracy of tire pressure and tire inflation gauges

1 product

Paper Pressure Analyzers

Take lab-quality scans of pressure recording film for frequent onsite measurements

1 product

Fuel Injection Pressure Testers

Check fuel injection pressure to maintain your car's gas mileage

1 product

Weather Stations

Measure multiple weather conditions at the same time

1 product

Data Recorders

Log temperature, humidity, or pressure levels to track changes and troubleshoot your system

25 products

Safety Equipment

Heat Stress Monitors

Measure temperature, humidity, and radiant heat to keep people safe from heat-related hazards

2 products

Blood Pressure Monitors

Take and store precise blood pressure and pulse rate readings

1 product