Carbon Dioxide Gauges | McMaster-Carr

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Connection Location

Pipe Size

For Use With

Alcohol-Based Solvents

Printed Circuit Boards

Stems with Clamping Nut

Surfaces

Taps

Thermocouple Connection Heads

Acetic Acid (White Vinegar)

Argon/Carbon Dioxide Blend

Hydraulic Fluid (Petroleum Based)

Salt Water (Calcium Chloride)

Salt Water (Sodium Chloride)

Soap Solutions

Sodium Bicarbonate (Baking Soda)

Sodium Hydroxide (Caustic Soda)

Sodium Hypochlorite (Bleach)

Steam

Steel

Sugar Water (Sucrose)

Dial Type

Measurement Unit

Kilograms per Square Centimeter

Kilopascals

Megapascals

Millibars

Ounces per Square Inch

Pounds per Square Inch

Thread Type

Pressure Numeric Increments

Dial Diameter

Scale Type

Measures

Differential Pressure

Display Type

Graduations

Case Material

Gender

Fitting Connection

Liquid Type

Accuracy Scale

Lens Material

Mounting Position

Connects To

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

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

Connection Material

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

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About Pressure Gauges

Pressure Gauges

These are the most commonly used pressure gauges. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Square Panel-Mount Pressure Gauges

These gauges fit into square cutouts in your instrument panel.

High-Accuracy Low-Pressure Gauges

Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes.

Digital High-Accuracy Pressure Gauges

A digital display allows for easy reading of measurements.

Vibration-Resistant Pressure Gauges

A liquid-filled dial reduces needle flutter for precise readings in high-vibration applications.

Maximum-Indicating
Vibration-Resistant Pressure Gauges

These gauges have a red needle that indicates the highest pressure reached since the last setting. They have a liquid-filled dial that reduces needle flutter for precise readings in high-vibration applications.

Gas Pressure Gauges

Use these gauges to monitor the pressure of compressed gas.

Low-Pressure Gauges for Chemicals

Use in low-pressure applications up to 160 psi.

Low-Pressure Differential
Gauges with Color Indicator

A band of green, yellow, and red provides a clear indication of changes in differential pressure.

Low-Pressure Differential Gauges with U-Tube

Also known as manometers, these gauges come with indicating liquid that moves up and down two columns—the difference in height between them is your pressure.

Absolute Pressure Gauges

Unlike other gauges that measure the difference between your system and the atmosphere, these give measurements relative to zero pressure.

Pressure-Regulating Valves

Tank-Mount Pressure-Regulating
Valves for Air and Inert Gas

These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure.

Easy-Read Tank-Mount Pressure-Regulating
Valves with Flowmeter for Inert Gas

Flowmeters let you see the gas flow rate from a distance.

Tank-Mount Pressure-Regulating
Valves with Flowmeter for Inert Gas

Commonly used in TIG welding where gas flow/coverage is a concern.

High-Purity Tank-Mount
Pressure-Regulating Valves for Inert Gas

Reduce contaminants in gases used in research sample systems, emission monitoring systems, chromatography, and other high-purity applications. These valves have a 316 stainless steel and brass body with a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination.

Tank-Mount Pressure-Regulating
Valves for Cryogenic Cylinders

Choose from valves for liquid argon, liquid nitrogen, liquid carbon dioxide, or liquid oxygen tanks.