McMaster-Carr

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	Measures Measures

Vacuum

Pressure

Differential Pressure

Differential Vacuum

Temperature

	Scale Scale

	Connection Location Connection Location


Bottom	Center Back	Lower Back

	Maximum Pressure, psi Maximum Pressure, psi

	Pipe Size Pipe Size

1/8

1/4

1/2

	Dial Diameter Dial Diameter

	Dial Type Dial Type


Dry	Liquid Filled

	For Use With For Use With

	Scale Type Scale Type


Dual	Single

	Case Material Case Material

	Connection Material Connection Material

	Display Type Display Type


Dial	Digital

	Thread Type Thread Type

NPT

NPTF

	Connection Type Connection Type


Pipe	Tube

	Accuracy Grade Accuracy Grade

Not Graded

	Lens Material Lens Material

Plastic

Glass

Rubber

	Accuracy Scale Accuracy Scale

Full Scale

Mid Scale

	Maximum Process Temperature Maximum Process Temperature

	Maximum Environment Temperature Maximum Environment Temperature

	Minimum Process Temperature Minimum Process Temperature

	Minimum Environment Temperature Minimum Environment Temperature

	Maximum Vacuum , in. of Hg Maximum Vacuum , in. of Hg

	Maximum Pressure, in. of H2O Maximum Pressure, in. of H2O

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133 Products

About Pressure Gauges

3-in-1 Pressure and Vacuum Gauges

These portable gauges have three different dials to display pressure and vacuum measurements on a low, medium, and high scale.

Pressure and Vacuum Gauges

Also known as compound gauges, these measure both pressure and vacuum.

Vibration- and Corrosion-Resistant
Pressure and Vacuum Gauges

Designed for harsh environments prone to vibration, these gauges pair a corrosion-resistant 304 stainless steel case with a glycerin-filled dial that reduces needle flutter.

Absolute Pressure
and Vacuum Gauges

Unlike other gauges that measure the difference between your system and the atmosphere, these give measurements relative to zero pressure. They are also known as Torr gauges.

Digital Pressure and Vacuum Gauges

A digital display allows for easy reading of measurements.

Refrigeration Pressure
and Vacuum Gauges

Often used with chillers and in refrigeration systems, these gauges display the temperature of ammonia relative to the pressure measurement.

Vibration-Resistant Pressure
and Vacuum Gauges

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

Corrosion-Resistant Pressure
and Vacuum Gauges

A 304 stainless steel case coupled with 316 stainless steel connection threads provide protection from corrosive environments.

Hand-Held High-Vacuum Gauges

Check the vacuum levels in high-vacuum pumps, valves, and chambers with this compact gauge.

Corrosion-Resistant Vacuum Gauges

The case and connection threads are stainless steel for protection in corrosive environments.

Vibration- and Corrosion-Resistant
Vacuum Gauges

Designed for harsh environments prone to vibration, these gauges pair a corrosion-resistant 304 stainless steel case with a glycerin-filled dial to reduce needle flutter.

Vacuum Gauges

Use these gauges with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

Vibration-Resistant Vacuum Gauges

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

Ultra-Low Vacuum Gauges

Accommodate applications with a vacuum range of -100 in. of H₂O to 0 in. of H₂O.

Differential Pressure and Vacuum
Gauges with Digital Display

Gauges have a digital display for easy reading of measurements.

Differential Pressure
and Vacuum Gauges

Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements.

Low-Pressure Differential
Gauges with Dial Indicator

Measure small changes in air pressure with these gauges. They are commonly used to indicate clogged filters and to monitor fans and blowers.

Digital High-Accuracy
Pressure Gauges

A digital display allows for easy reading of measurements.

Pressure and Vacuum Transmitters

Washdown Vacuum Transmitters

These transmitters are rated NEMA 4X for protection from washdowns and corrosion.

High-Accuracy Vacuum Transmitters

At least four times as accurate as standard vacuum transmitters, these transmitters sense vacuum at an accuracy of ±0.25%, making them ideal for use in laboratories and in analytical testing applications.

Vacuum Transmitters

Convert vacuum into an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls to monitor vacuum or control equipment.

High-Accuracy Pressure
and Vacuum Transmitters

With an accuracy of ±0.25%, use these transmitters in applications that require highly accurate measurement of both pressure and vacuum, such as activating vacuum pumps.

Pressure and Vacuum Transmitters

Convert both pressure and vacuum into an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls to monitor pressure or control equipment.

Remote Displays for
Pressure Transmitters

Monitor pressure in your system from a distance by using this display in conjunction with pressure transmitters.

Easy-Setup Pressure
and Vacuum Transmitters

These transmitters automatically compensate for error introduced into both pressure and vacuum measurements by vibrations as well as temperature fluctuations, so you do not need to program corrections for these factors into your receiving device. They convert pressure and vacuum to an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls to monitor pressure or control equipment.

Test Gauges for Vacuum

Use these gauges to test and calibrate transmitters, gauges, and other equipment that measures vacuum.

Electric Ultra-High-Vacuum Pumps

Achieve vacuum levels up to 1 x 10 ^-12 torr with these ultra-high-vacuum pumps.

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