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In addition to our range of standard ‘off the shelf’ instruments, our pressure gauges can be adapted to include non-standard connections, custom dials and your company’s logo. There is also the option of a UKAS calibration certificate or a calibration certificate traceable to national standards for any pressure gauge purchase.

Pressure Gauges

A pressure gauge is an analogue device for measuring pressure of liquids and gases. It does this with the use...

Digital Gauges

Digital gauges are a precision instrument designed for reading pressure or vacuum where precise measurement is needed with high resolution....

Diaphragm Gauges

Diaphragm gauges are a pressure measuring instrument with a barrier between the process medium and bourdon tube measuring system inside...

Pressure Transmitters

S.M. Gauge supply a wide range of pressure transmitters, otherwise known as transducers. Our transmitters are suitable for all kinds...

Temperature Instrumentation

We are one of the UK’s largest suppliers of temperature instruments and equipment. Listed are many of our products but...


We offer a range of bespoke thermowells to match customer requirements. Thermowells can be machined in many different ways including...

Vacuum Gauges

Vacuum Gauges are available in a variety of sizes, from 40mm diameter to 300mm and with a bottom or rear...

Absolute Gauges

For measurement of absolute pressure excluding the effect of barometric pressure variation, suitable for air and dry clean gaseous media.

Low Pressure Differential & Magnehelic Gauges

Low pressure differential gauges are most commonly used for measuring the differential pressure across two different areas. Such as room...

Pneumatic Hand Pumps

We supply a range of pneumatic hand pumps as well as related products. Our hand pumps are compact and light....

Hydraulic Hand Pumps & Comparison Testers

We supply a range of hydraulic hand pumps as well as related products such as comparison testers. Our hand pumps...

Differential Gauges

A differential gauge is a device designed to measure the difference in pressure between two pressure sources. This can be...

High Accuracy Test Gauges

High accuracy test gauges are used as a test standard to calibrate other instruments. With an accuracy of ± 0.25%...

Subsea/Caisson Gauges

Subsea gauges can come in two different types. One type is to measure the pressure of the process independent of...

Tank Level Gauges

Our gauges work on the hydro-static principle. They take the pressure at the measuring point and convert it to a...

Pressure Relief Valves

Pressure relief valves are mounted in a process line as a protective safety feature. It is designed to vent the...

Instrument Accessories

Pressure gauge accessories can be things like sealing washers to make installation safe. Gauge syphons for shedding heat to avoid...

Chart Recorders

Chart recorders are designed for measuring pressure, temperature or both over a period. The pressure side has a standard male...

Instrument Valves & Block & Bleed Manifolds

Block & Bleed manifolds are a type of isolation valve. They have multiple handles to isolate different parts of the...

Excellent Customer Service

Dedicated pre and post sales staff

From your first enquiry through to future advice and support, we put customer service at the forefront of our business.

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Leading industry standards

NQA ISO9001 Accredited and Achilles Affiliated

  • UKAS logo
  • Achilles logo
  • NQA UKAS logo
  • BEMA logo
  • QAS International ISO 14001:2025 logo

About S.M. Gauge Co Ltd Vacuum Gauges

We supply, repair and calibrate standard Vacuum Gauges and Absolute Pressure Gauges. All of our gauges can be custom made to suit your application, our dials can be scaled to suit any measuring units you require using our state of the art dialling system. The connections can also be machined to suit your exact specification.

There are two main types of vacuum gauges available: Vacuum Gauges are available in a variety of sizes, from 40mm diameter to 300mm and with a bottom or rear entry connection. They are used primary on applications that run at an operating pressure of between 0 (atmospheric pressure) and -30″Hg (inches mercury) Absolute Gauges are used to measure beyond the pressures of a standard Vacuum Gauge, they are supplied with a 100mm diameter face and are available in a variety of pressures.

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