Manometers

Manometers are instruments used to measure the pressure of liquids and gases, and are vital for maintaining and troubleshooting equipment that uses gas or liquid to operate. Most modern manometers are compact and portable digital instruments that offer greater levels of accuracy, safety and ease of use than older types featuring a U-shaped glass tube filled with liquid mercury.

What are the features of manometers?

Modern manometers are handheld, battery operated and have clear digital screens so that results can be easily read even in awkward places or in bright or dim light. Hi-tech sensors and sophisticated microprocessors give highly accurate readings, while many come with software that allows data to be transferred to laptops, smartphones or tablets for storage or analysis.

Most digital manometers have memory capacity for data logging. A range of maximum pressure measurements are available, and some models are designed to be intrinsically safe for use in hazardous environments.

How do manometers work?

Digital and analogue manometers work on the same principle of fluid displacement. In traditional U-tubed manometers, water fills the tube before a gas line introduces pressure to displace the water. The height to which the water rises is then measured on an analogue scale.

The modern digital manometer can accurately reproduce this process electronically, with pressures typically displayed in pounds per square inch (PSI). They can measure absolute pressure, differential pressure, and gauge pressure. In conjunction with a pitot tube, a manometer can convert pressure readings into air velocity (FPM).

Where are manometers used?

Manometers are used to measure air, gas or fluid pressure in commercial, domestic and industrial environments to ensure that levels remain optimal and safe. They can also be used to troubleshoot system failures and seek out leaks, and are commonly used for food processing, research and education.

In refrigeration systems, digital pressure meters can gauge pressure, vacuum and temperature. They can also help to establish flow and static pressure in gas systems, or be used for pressure-drop testing in gas pipes.


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Description Price Best Accuracy Calibrated Number of Pressure Ports Maximum Pressure Measurement Minimum Pressure Measurement Pressure Port Type Leak Testing Communication Protocol Minimum/Maximum Recordings Data Logging Intrinsically Safe IP Rating Battery Type Display Type
New
RS Stock No. 205-1444
BrandRS PRO
MYR3,410.43
Each
units
±0.2 % FS - 2 2000mbar -1000mbar Differential No - Yes No No IP65 9 V LCD
RS Stock No. 146-7721
BrandRS PRO
MYR3,715.36
Each
units
±0.1 % - - 10bar 0bar Absolute Yes - Yes - No IP54 Alkaline LCD
RS Stock No. 146-7719
BrandRS PRO
MYR2,541.38
Each
units
±0.1 % - 1 1bar 0bar Differential Yes - Yes - No IP54 Alkaline LCD
New
RS Stock No. 205-0964
BrandRS PRO
MYR1,081.74
Each
units
±0.2 % - 2 0.02bar -0.2bar Differential No - Yes No No IP67 AA Backlit LCD
New
RS Stock No. 205-1446
BrandRS PRO
MYR3,493.04
Each
units
±0.3 % FS - 2 500mbar -500mbar Differential No - Yes No Yes IP65 9 V LCD
RS Stock No. 146-7720
BrandRS PRO
MYR2,541.38
Each
units
±0.1 % - 1 7bar 0bar Gauge Yes - Yes - No IP54 Alkaline LCD
New
RS Stock No. 205-0966
BrandRS PRO
MYR3,479.45
Each
units
±0.2 % - 1 1000bar 0bar Absolute Yes - Yes No No IP65, IP67 AAA Backlit LCD
New
RS Stock No. 205-0967
BrandRS PRO
MYR2,299.37
Each
units
±0.4% - 1 0.35bar -0.199bar Differential Yes USB Yes No - IP65, IP67 AAA Backlit LCD
RS Stock No. 146-7717
BrandRS PRO
MYR2,467.94
Each
units
±0.1 % - 2 70mbar 0mbar Differential Yes - Yes - No IP54 Alkaline LCD
New
RS Stock No. 205-0968
BrandRS PRO
MYR3,479.45
Each
units
0.1 % - 1 1000bar 0bar Absolute Yes - Yes No No IP65, IP67 AAA Backlit LCD
RS Stock No. 146-7722
BrandRS PRO
MYR3,715.36
Each
units
±0.1 % - - 20bar 0bar Gauge Yes - Yes - No IP54 Alkaline LCD
New
RS Stock No. 205-0969
BrandRS PRO
MYR3,479.45
Each
units
±0.2 % - 1 1000bar 0bar Absolute Yes - Yes No No IP65, IP67 AAA Backlit LCD
RS Stock No. 146-7723
BrandRS PRO
MYR3,799.14
Each
units
±0.1 % - 1 700bar 0bar Absolute Yes - Yes - No IP54 Alkaline LCD
RS Stock No. 144-5336
BrandRS PRO
MYR620.07
Each
units
±0.3 % - 2 0.137 bar, 0.14 kgcm², 2 psi, 4.072 inHg, 4.612 ftH2O, 13.79 kPa, 32 ozin², 55.4 inH2O, 103.4 mmHg, 137.8 psi, 140.6 cmH2O -2psi Differential, Gauge - - Yes - - - 9V LCD
New
RS Stock No. 205-0963
BrandRS PRO
MYR1,081.74
Each
units
±0.2 % - 2 2bar -2bar Differential No - Yes No No IP67 AA Backlit LCD
RS Stock No. 146-7718
BrandRS PRO
MYR3,799.14
Each
units
±0.1 % - - 350mbar 0mbar Differential Yes - Yes - No IP54 Alkaline LCD
RS Stock No. 287-636
Mfr. Part No.FLUKE 922/KIT
BrandFluke
MYR4,600.80
Each
units
±1% +0.01 mbar - - 40mbar - Differential - - Yes Yes - IP40 AA LCD
RS Stock No. 850-7672
Mfr. Part No.FLUKE 922
BrandFluke
MYR4,007.70
Each
units
±1 % - - 6psi -6psi Differential - - Yes Yes - IP40 AA LCD
RS Stock No. 313-0924
Mfr. Part No.2020P7
BrandDigitron
MYR1,640.07
Each
units
±0.15% + 0.0375 mbar + 1 Digit - 2 25mbar 0mbar Differential - - Yes - - IP67 AA LCD
RS Stock No. 313-0233
Mfr. Part No.2023P7
BrandDigitron
MYR1,920.58
Each
units
±0.15% + 0.0105 bar + 1 Digit - 2 7bar 0bar Differential - - Yes - - IP67 AA LCD
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