Manometers & Pressure Meters

Measure pressure levels accurately using our range of high quality pressure meters and digital manometers. Includes differential pressure measurement tools, portable pressure meters and absolute pressure testers.

Find out more about Manometers & Pressure Meters below.

Comark C9551 Pressure Meter – 0 to 140mBar
Comark C9551 Pressure Meter – 0 to 140mBar
£269.00
£322.80 inc. vat
  • Measure in different pressure units
  • Handheld, portable design
  • Range of advanced measurement functions
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Comark 9553 Pressure Meter – 0 to ±350mBar
In Stock : Get It Next Working Day*
Comark 9553 Pressure Meter – 0 to ±350mBar
£269.00
£322.80 inc. vat
  • Selectable pressure units: PSI, mBar, inH20, inHg, mmHg, torr, KPa and mmH20
  • Handheld, portable design
  • Available in a silicone option for liquid pressure measurements
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Comark C9555 Pressure Meter – 0 to 2000mBar
In Stock : Get It Next Working Day*
Comark C9555 Pressure Meter – 0 to 2000mBar
£269.00
£322.80 inc. vat
  • Wide measurement range with selectable pressure units
  • Available with silicone protection option for liquid pressure measurements
  • Twin inputs
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Comark C9557 Pressure Meter – 0 to 6900mBar
In Stock : Get It Next Working Day*
Comark C9557 Pressure Meter – 0 to 6900mBar
£269.00
£322.80 inc. vat
  • High specification model in Comark pressure meter range
  • Selectable measurement units
  • Available with or without silicone protection for liquid pressure measurements
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Comark C9501 ATEX Intrinsically Safe Pressure Meter 0 to 140mBar
In Stock : Get It Next Working Day*
Comark C9501 ATEX Intrinsically Safe Pressure Meter 0 to 140mBar
£379.00
£454.80 inc. vat
  • ATEX compliance
  • Wide measurement range
  • Multiple selectable pressure measurement units
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Comark C9503 ATEX Intrinsically Safe Pressure Meter - 0 to ±350mBar
In Stock : Get It Next Working Day*
Comark C9503 ATEX Intrinsically Safe Pressure Meter - 0 to ±350mBar
£379.00
£454.80 inc. vat
  • Intrinsically safe for use in dangerous atmospheres
  • Wide measurement range with selectable pressure units
  • MAX/Min and data hold functions
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Comark C9505 ATEX Intrinsically Safe Pressure Meter – 0 to ±2100mBar
Comark C9505 ATEX Intrinsically Safe Pressure Meter – 0 to ±2100mBar
£379.00
£454.80 inc. vat
  • Wide measurement range up to 2100mBar
  • Intrinsically safe for use in environments where there is risk of combustion
  • Choose between 9 pressure measurement units
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Comark C9507 ATEX Intrinsically Safe Pressure Meter – 0 to ±7000mBar
In Stock : Get It Next Working Day*
Comark C9507 ATEX Intrinsically Safe Pressure Meter – 0 to ±7000mBar
£379.00
£454.80 inc. vat
  • Selectable pressure units
  • Certified for use in dangerous environments where combustion is a risk
  • Huge measurement range from 0 to ±7000mbar
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About Manometers & Pressure Meters

At Tester, we stock a wide range of differential manometers and U gauges for measuring the difference in pressure between two atmospheric sources. The most typical use for this is to measure the pressure of gas and air condition systems at close to atmospheric pressures. A correctly calibrated tester can also be used to troubleshoot a whole range of different problems from gas leaks to inconsistent pressures.

Manometers work on typically having a U-shaped tube filled with either mercury or water. The reason that mercury is often used over the more readily available and non-toxic water is that the increased density of mercury allows for a much smaller column to be required and therefore a much smaller tester can be produced.

To operate a manometer both sides of the column are attached to a pressure-producing source, such as a gas outlet. In response to the difference in pressure, the liquid will travel up the column a distance that can be measured to calculate the exact difference in pressure.

Simple U-shaped manometers are often no more complicated than this, with an engineer having to calculate the exact differential pressure between the sources. Most electrical manometers do most of the hard work for you by providing highly accurate readings of the exact difference as well as offering additional features any HVAC engineer may need.

Before commencing work it is very important to make sure that your manometer is suitable for the task at hand. There is a very wide range of different manometers that specialise in testing between different pressure ranges insuring the most accurate results possible.