Manometers & Pressure Meters
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TPI 645NPT Dual Input Manometer with ¼” NPT Fittings£198.00 £165.00- Measure positive, negative and differential pressure up to 30 PSI/ 2 bar
- Selectable units: kPa, PSI, mmHg, inHg, mH2O and inH2O
- Trim/ Smooth feature for stabilising the display when measuring fluctuating pressure
165 Reward PointsPrice Match GuaranteeTPI-645NPT -
TPI 623 Dual Input High Resolution Digital Manometer£210.00 £175.00- Dual input
- High accuracy and excellent resolution
- Seven measurement units
175 Reward PointsPrice Match GuaranteeTPI-623 -
TPI 635 Dual Input Tuffman Digital Manometer£210.00 £175.00- Dual inputs
- Seven pressure measurement units
- ±5 PSI measurement range
175 Reward PointsPrice Match GuaranteeTPI-635 -
TPI 645 Dual Input Tuffman Digital Manometer£210.00 £175.00- Measurement range of 29 psi
- Dual input
- Seven pressure measurement units
175 Reward PointsPrice Match GuaranteeTPI-645 -
TPI 665 Dual Input Tuffman Digital Manometer w/ Choice of Model
£222.00 £185.00- Dual inputs - measure from two points simultaneously
- Seven pressure measurement units
- Data logging
185 Reward PointsPrice Match GuaranteeTPI-665-OPTION -
TPI 720b621 Tightness Test Kit - 720b Gas Detector + 621 Manometer£258.00 £215.00- Two testers in one pack
- Supplied in soft carrying case
- Measure pressure and detect gas leaks
215 Reward PointsPrice Match GuaranteeTPI-720b621-Kit -
Free UK DeliveryTPI 665L Dual Input Tuffman Digital Manometer (Choice of Kit)£330.00 £275.00- Two versions available
- Internal memory
- Dual ports for simultaneous pressure measurements
275 Reward PointsPrice Match GuaranteeTPI-665L-OPTION
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.
