Pressure Indicators | McMaster-Carr

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System of Measurement

Pipe Size

Connection Location

For Use With

Maximum Pressure

1,000 psi to 1,999.9 psi

2,000 psi to 9,999.9 psi

10,000 psi to 19,999.9 psi

20,000 psi or greater

Less than 10,000 kPa

10,000 kPa to 19,999 kPa

20,000 kPa to 29,999 kPa

30,000 kPa to 99,999 kPa

100,000 kPa or greater

Thread Type

Measures

Differential Pressure

Dial Diameter

Measurement Unit

Centimeters of Mercury

Kilograms per Square Centimeter

Dial Type

Material

Pressure Numeric Increments

Scale Type

Display Type

Graduations

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Fitting Connection

Maximum Continuous Pressure

Case Material

Connection Material

Minimum Pressure

REACH

RoHS

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

2B230

2B999

EAR99

DFARS Specialty Metals

Exempt

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5,794 Products

Fluid Handling

Pressure Gauges

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

290 products

Pressure Indicators

Turn green when your compressed air line reaches a certain psi

3 products

Pressure Transmitters

Send pressure readings to controllers and remote displays

365 products

Differential Pressure Gauges

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

124 products

Pressure and Vacuum Gauges

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

242 products

Differential Pressure Transmitters

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

70 products

Pressure Test Gauges

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

611 products

Pressure and Vacuum Transmitters

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

98 products

Pressure Transmitter Displays

Remotely view pressure readings sent from a transmitter

2 products

Pressure Gauge Snubbers

Reduce flow to suppress vibration and pressure spikes that can damage gauges

15 products

Vacuum Gauges

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

121 products

Gauge Siphon Tubes

Fill with water to protect dry gauges from steam and high-temperature liquids; also called pigtails

31 products

Gauge Guards

Shield gauges from corrosive liquids and gases; also called diaphragm seals

15 products

Vacuum Test Gauges

Verify that equipment is taking accurate vacuum measurements

8 products

Differential Pressure and Vacuum Gauges

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

20 products

Gauge Liquids

Refill the liquid indicator on gauges with a U-tube

5 products

Vacuum Transmitters

Transfer vacuum measurements to remote displays and controllers

17 products

Differential Pressure Sensors

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

5 products

Pitot Tubes

Connect to gauges to measure air flow in filters, cooling coils, and other air-handling equipment

4 products

Flow Transmitters

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

2 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

10 products

Hydraulic Accumulator Charging and Gauging Kits

Fill accumulators with nitrogen and test the pressure to ensure it’s within the correct range

2 products

Vacuum Pumps

Create suction force to move objects, draw liquids and gases, or generate flow

2 products

Measuring and Inspecting

Wristwatches

Display the time, date, and smart functions on your wrist and keep your hands free

1 product

Paper Pressure Analyzers

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

1 product

Barometers

Measure atmospheric pressure changes

8 products

Tire Pressure Test Gauges

Calibrate the accuracy of tire pressure and tire inflation gauges

1 product

Refrigerant Pressure Testing Manifolds

Monitor refrigerant pressure when servicing air conditioning systems

7 products

Pressure Film

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

Check engine compression to maintain top performance

9 products

Fuel Injection Pressure Testers

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

1 product

Force Gauge Grips

Pair with force gauges to test wire, pins, and thin sheets

10 products

Weather Stations

Measure multiple weather conditions at the same time

9 products

Force Gauges

Test objects to see how much tension and compression force they can bear

133 products

Load Cells

Measure forces and send them to computers to monitor and trigger actions in machinery

268 products

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products