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Pressure gauges are analogue or digital instruments used to measure the pressure or vacuum within a fluid power system. Gauges are installed at any point within a machine where the pressure needs to be measured. By monitoring the pressure within a system, you can prevent damage or downtime caused by spikes in pressure. For a more in-depth overview, please see our [pressure gauges guide](/web/content/discovery/ideas-and-advice/pressure-gauges-guide).

### Analogue pressure gauges

This type of gauge displays a pressure measurement on a dial. The needle is controlled by a spring or a tube that changes according to the pressure. It is important to ensure that your dial can read the pressure range within your system. Some pressure gauges can read up to 5000 psi or 7500 psi. The pressure scale range is also measured in "bar".

### Digital pressure gauges

This type of gauge uses microprocessors and sensors to display pressure readings on an integrated digital output display. Digital pressure gauges are ideal for low pressures due to resolution scales ranging from 0.001 to 0.01. Digital pressure gauges are typically bottom entry and come in various diameters. These gauges can be used for hydraulic pressure and pneumatic pressure.

RS offer an extensive range of highly accurate devices from industry-leading brands including Bourdon, Fluke, WIKA, Druck, and of course RS PRO.

### Need Calibration?

Calibration of your pressure gauge will ensure the instrument is operating correctly and within the manufacturer's specifications. Calibrated gauges will measure within the desired range and provide accurate readings. For more information on this, we offer in-house [calibration services](https://uk.rs-online.com/web/generalDisplay.html?id=our-services/calibration) if required.

Other things to consider when choosing a pressure gauge include the operating temperature and the accuracy of the reading. Most gauges are mounted on a threaded connection, such as G 1/4, BSP 3/8 or NPT 1/2

### What are pressure gauges made from?

Most standard pressure gauges are made from stainless steel or brass. However, there are lightweight alternatives such as plastic or aluminium options.

### Where would I use one?

Pressure gauges are used in a wide range of industrial applications where it is necessary to measure the pressure is within normal limits. Some of the most common are:

Air conditioning systems

Heating systems

Compressors

Medical engineering

Operating machinery

Hydraulics systems



Shop our range of Analogue Positive Pressure Gauges supplies & accessories. Free Next Day Delivery.

Pressure Gauges | Brass & Stainless Steel | RS

Pressure Gauges

Brannan G 3/8 Analogue Pressure Gauge 6bar Bottom Entry 100mm...

Brannan G 3/8 Analogue Pressure Gauge 4bar Bottom Entry 100mm...

Brannan G 3/8 Analogue Pressure Gauge 2.5bar Bottom Entry 100mm...

Brannan G 3/8 Analogue Pressure Gauge 16bar Bottom Entry 100mm...

Brannan G 3/8 Analogue Pressure Gauge 10bar Bottom Entry 100mm...

Brannan Analogue Pressure Gauge 2.5bar Bottom Entry 100mm Outside...

Brannan Analogue Pressure Gauge 10bar Bottom Entry 100mm Outside...

Brannan Analogue Pressure Gauge 4bar Bottom Entry 100mm Outside...

Buy our range of WIKA pressure gauges. Browse our latest WIKA pressure gauges offers. Don't miss out on our latest deals!

WIKA Pressure Gauges | RS

Buy Ametek Pressure Gauges. Browse our latest Ametek Pressure Gauges offers. Free Next Day Delivery.

Ametek Pressure Gauges | RS

Buy from our selection of Pressure Gauges from Bourdon. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Bourdon Pressure Gauges | RS

Buy Brannan Pressure Gauges. Browse our latest Brannan Pressure Gauges offers. Free Next Day Delivery.

Brannan Pressure Gauges | RS

Buy from our selection of Pressure Gauges from Druck. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Druck Pressure Gauges | RS

Buy Festo Pressure Gauges. Browse our latest Festo Pressure Gauges offers. Free Next Day Delivery.

Festo Pressure Gauges | RS

Buy Fluke Pressure Gauges. Browse our latest Fluke Pressure Gauges offers. Free Next Day Delivery.

Fluke Pressure Gauges | RS

Buy from our selection of Pressure Gauges from Parker. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Parker Pressure Gauges | RS

Buy from our selection of Pressure Gauges from SMC. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

SMC Pressure Gauges | RS

Buy from our selection of pressure gauges from Asco. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Asco Pressure Gauges | RS

<p>From the well-known brand Asco, a selection of precision, high-quality pressure gauges. Asco pressure gauges are for use with compressors, filter/regulators, water pumps and other air pressure measurement applications. Asco pressure gauges provide an easy solution for monitoring the pressure within a system, so you the engineer can prevent damage or premature failure of equipment and machinery. All Asco pressure gauges have been manufactured and tested to meet the latest industry standards.</p><h2>Features and Benefits</h2><ul><li>Robust and reliable</li><li>Easy to install</li><li>R 1/8 tapered centre back connection</li><li>40 mm and 50 mm gauge diameters</li><li>Bar and psi dial indication</li><li>Calibrated versions available</li></ul><h2>Need Calibration?</h2><p>Calibration of your pressure gauge will ensure the instrument is operating correctly and within the manufacturer's specifications. Calibrated gauges will measure within the desired range and provide accurate readings. For more information on this, we offer in-house <a href="https://uk.rs-online.com/web/generalDisplay.html?id=our-services/calibration">calibration services</a> if required.</p><h2>Typical Applications</h2><p>Asco pressure gauges are robust and reliable making them suitable for a wide range of mechanical and industrial applications. Some of the most common are:</p><ul><li>Pneumatic and Hydraulic systems</li><li>Food and beverage</li><li>Instrumentation and laboratory</li><li>Compressors</li></ul>

Buy Norgren Pressure Gauges from RS. Easily monitor pressure levels in your pneumatic system with Norgren Pressure Gauges. Free next day delivery!

Norgren Pressure Gauges | RS

<p>Looking for a dependable way to read pressure levels for gaseous and liquid media in your pneumatic system? Norgren have a great selection of pressure gauges to choose from here at RS.</p><p>You'll find these devices used in applications such as heating, medical equipment, air conditioning, and small capacity compressors. You can select from units with tough stainless steel or ABS housing for optimal durability in demanding industrial conditions. Many come with both a bar and PSI scale for readings, with accuracy levels including 2.5% of the full scale. Norgren's offer includes analogue gauges which use the Bourdon tube principle, which involves a tube that straightens when under pressure. How does this work? When the pressure rises, it makes the dial turn clockwise to display the reading. This type of pressure gauge is both accurate and reliable.</p><p>Norgren pressure gauges are used in many industries such as automotive, food and beverage production, energy, manufacturing, and medical.</p><p>For high-quality pneumatics components that consistently deliver efficient, safe, and reliable performance, choose Norgren products. As specialists in the field of motion control and fluid technology solutions, their products are designed to meet strict standards, so you can trust them for the complex requirements of modern day systems.</p>

Brannan Pressure Gauges

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