Manometer

A manometer is used to measure the pressure of liquids or gases. PCE Instruments (PCE) offers handheld digital manometer products as well as flanged manometer and fixed manometer products for use in a variety of practical pressure measuring applications.

A handheld digital manometer commonly is used to measure differential pressure in heating, ventilation and air conditioning (HVAC) systems. Differential pressure references the difference in pressure between two points. For example, an HVAC service professional might compare the difference in pressure in front of and behind an air filter when performing duct system diagnostics.

A flanged manometer is referred to predominantly as a pressure gauge. This type of pressure measuring tool typically is used to measure relative pressure or absolute pressure. Relative pressure references external air pressure or atmospheric pressure. Absolute pressure references zero pressure or a perfect vacuum. Flanged manometers are threaded pressure gauges designed to connect to pipes containing different liquids or gases. The type of membrane or diaphragm used in the pressure gauge determines the gauge’s compatibility with certain kinds of liquids or gases. For example, ceramic diaphragms are highly resistant to process fluids with abrasive particles, but ceramic diaphragms can be incompatible with strong acids. Whereas stainless steel diaphragms are easy to clean and sterilize, and thus frequently used in the hygienic processing of food and pharmaceutical products.

Pressure Gauges

A fixed manometer can be integrated into a control system to regulate a process. Fixed manometers often feature analog outputs that can be configured for analog current (e.g., 4-20 mA) or analog voltage (e.g., 0-10 V) signals.

Should you require assistance with selecting the right manometer product for your application, please contact us at or +91 98 33 45 81 40.

Manometer PCE-PDA 01L

₹131,376.00

Price excl. VAT &. delivery

The manometer PCE-PDA 01L is a reliable differential pressure gauge for pressure measurement of gases in the range of ± 200 Pa. The manometer PCE-PDA 01L has many different pressure measuring functions.

Measuring range: ± 200 Pa / 0.029 psi / 0.002 bar
Resolution: 0.1 Pa / 0.0000145 psi / 0.000001 bar
Accuracy: ± 1% of final value
Min and Max value memory
Data logger and leak test
Temperature measurement, flow measurement

Manometer PCE-PDA 1L

₹110,544.00

Price excl. VAT &. delivery

The manometer PCE-PDA 1L is a reliable differential pressure gauge for pressure measurement of gasses in the range of ± 2 kPa. The manometer PCE-PDA 1L has many different pressure measuring functions.

Measuring range: ± 2000 Pa / ± 0.29 psi / ± 0.02 bar
Resolution: 1 Pa / 0.000145 psi / 0.00001 bar
Accuracy: ± 0.5% of final value
Min and Max value memory
Data logger and leak test
Temperature measurement, flow measurement

Manometer PCE-PDA 10L

₹104,889.00

Price excl. VAT &. delivery

The manometer PCE-PDA 10L is a reliable differential pressure gauge for pressure measurement of gases in the range of ±20 kPa. The manometer PCE-PDA 10L has many different pressure measuring functions.

Measuring range: ± 20 kPa /± 2.9 psi / ± 0.2 bar
Resolution: 10 Pa / 0.00145 psi / 0.0001 bar
Accuracy: ± 0.5% of final value
Min and Max value memory
Data logger and leak test
Temperature measurement, flow measurement
Pitot tube not included in delivery / optionally selectable

Manometer PCE-PDA A100L

₹116,496.00

Price excl. VAT &. delivery

The manometer PCE-PDA A100L is suitable for the measurement of atmospheric pressure. This manometer records the pressure from absolute zero to 200 kPa. The manometer can be used for many mobile applications in industry and crafts.

Measuring range pressure: 0 … 200 kPa absolute
Resolution: 0.01 kPa, 0.1 kPa
Accuracy: < ± 0.5% of the measuring range
USB interface
Datalogger
Different units

Manometer PCE-PDA 100L

₹104,889.00

Price excl. VAT &. delivery

The manometer PCE-PDA 100L is a reliable differential pressure gauge for pressure measurement of gases in the range of -100 to +200 kPa. The manometer PCE-PDA 100L has many different pressure measuring functions.

Measuring range: -100 … 200 kPa / -14.5 … 29 psi / -1 … 2 bar
Resolution: 10 Pa / 0.00145 psi / 0.0001 bar
Accuracy: ± 0.5% of final value
Min and Max value memory
Data logger and leak test
Temperature measurement, flow measurement

Manometer PCE-PDA 1000L

₹108,907.00

Price excl. VAT &. delivery

The relative pressure manometer PCE-PDA 1000L measures the relative pressure on machines and systems. The relative pressure is measured by this pressure manometer in the range between -100 … 2000 kPa. The relative pressure manometer PCE-PDA 1000L has a quick coupling connection with which the air pressure or water pressure can be directly applied to the device.

Measuring range pressure: -100 … 2000 kPa relative/ -14.5 … 290 PSI
Resolution: 0.01 kPa, 0.1 kPa
Accuracy: <± 0.5% of the measuring range
USB interface
Data logger
Adjustable measuring units: Pa, hPa, kPa, MPa, mbar, bar, ATM, kg / cm², mmH2O, cmH2O, inH2O, mmHg, inHg, Torr, PSI, PSF

Manometer PCE-MPM 10

₹12,633.00

Price excl. VAT &. delivery

The manometer is a small and handy measuring device for determining the differential air pressure. The manometer has a measuring range of ±5000 Pa. The manometer is connected via two hose connections with a diameter of 8 mm.

Measuring range: ±5000 Pa
11 different pressure units:Pa, hPa, mBar, mmH2O, mmHg, inH2O, inHg, psi, ozin², bar, kPa
Medium: gaseous
Zero point calibration

Manometer PCE-PME 10

₹12,633.00

Price excl. VAT &. delivery

The digital Manometer is an accurate and compact meter for differential pressure measurement in a wide range of applications, such as measuring filter resistances, pressure in furnaces, orifices, gas-air ratio equalisation, combustion processes, air conditioning systems, ventilation systems, etc. The Manometer is suitable for measuring non-aggressive and non-explosive gases.

measurement range -10 ... +10 kPa (-100 ... +100 mbar)
resolution 0.01 kPa
accuracy: ±1 % FS
MAX, MIN, AVG value, HOLD
audible alarm
13 selectable pressure units
USB-C with data transfer
PC software

Manometer PCE-PDFL 10

₹14,568.00

Price excl. VAT &. delivery

The manometer has a measuring range of -30 … 60°C / -22 … 140°F and can be used in cold environments. In addition to temperature and humidity measurement, the manometer can also measure the absolute air pressure in the ambient atmosphere in a measuring range between 700 … 1100 hpa.

Measuring range temperature: -30 … 60°C / -22 … 140°F
Measuring range relative humidity: 0 … 100% r. h.
Measuring range absolute air pressure: 700 … 1100 hpa
Data export: .pdf, .csv
Interface: USB-A
Memory capacity: 13340 measuring points

More Information on Manometers

While the original manometer was a liquid column gauge, today's manometers employ many different methods of pressure measurement. For example, a flanged manometer is a pressure gauge that normally uses a round diaphragm or spring clamped between two flanges to measure pressure. Other pressure gauges use electronic pressure sensors based on piezoresistive strain, capacitive, magnetic, piezoelectric, optical or potentiometric measurement principles.

Manometer Types and Applications

Manometer Terminology

Pressure Conversions

Pressure measurements can be expressed in a number of different measuring units, depending on industry, application and regional preferences. Following is a conversion table depicting some of the more commonly used pressure measuring units.

psi	atm	kgf/cm2	inH2O	mmHg	inHg	kPa	bar	mmH2O
1	0.068046	0.070307	27.7276	51.715	2.03602	6.895	0.6895	704.28104
14.696	1	1.0332	407.484	760	29.921	101.325	1.01325	10350.0936
14.2233	0.96784	1	394.38	735.559	28.959	98.096	0.98067	10000
0.036092	0.002454	0.00253	1	1.8651	0.07343	0.249	0.00249	25.4
0.019336	0.001315	0.001359	0.53616	1	0.03937	0.1333	0.001333	13.618464
0.491154	0.0033421	0.03453	13.6185	25.4	1	3.3864	0.033864	345.9099
0.145	0.00987	0.010197	4.0186	7.5006	0.2953	1	0.01	102.07244
14.5038	0.98692	1.01972	402.156	750.062	29.53	100	1	10214.7624

Purchase advice Manometer / Digital manometer

What kind of manometer do you need? Purchase decision support

As a customer, you can always call the technical consulting hotline of PCE Instruments 00442380 - 987 030. The colleagues will ask you specific questions about your application and suggest the best suited products for the solution of your measuring task.

Stationary Digital Manometer Pressure Gauge. Below you will also find some tips which you should take into consideration when selecting or purchasing a manometer.

The essential criteria by which a manometer should be selected are the display range and the resistance of the materials against temperature, measuring medium and environment.

Criteria when selecting a device:

- Analogue / digital
- Type of pressure
- Medium
- Built-in unit / handheld
- Measuring range / accuracy
- Connection thread / membrane

Do you need an analog or a digital display?

In our product range you will find manometers with analogue and digital displays.

Analog manometers employ mechanical measuring methods; therefore, analog manometers or pressure gauges require little to no maintenance. Because there are no electronics, analog pressure gauges are quite easy to use. Because of the shock-proof and robust housing, the analog manometers are mostly applied in workshops or in industry. A further advantage of the analog manometers is the ease of use – you only have to screw the analog manometer into the pressure system and read the measured value from the analog display.

Our digital manometers are battery operated and therefore ideal for mobile use. The measured values can be displayed in the units of bar, psi, Pa, or Mpa (in handheld devices up to 11 units possible). The digital manometers offered by PCE Instruments have various functions, for example storing the Min-Max values or an automatic shutdown.

What type of pressure should be measured?

In general, in case of manometers, a distinction is made between absolute, relative and differential pressure.

Absolute pressure

The absolute pressure refers to the pressure zero in the vacuum and is particularly interesting for air pressure measurements. To measure an absolute pressure, you can use altimeters and barometers available in our product range.

Relative pressure

Relative pressure references ambient air pressure or atmospheric pressure. The relative pressure is divided into overpressure and negative pressure. If the air pressure of 0 bar is assumed, positive values are obtained for the pressure above it, which is referred to as overpressure. If the value is below the air pressure of 0 bar, we get a negative value and we then speak of a negative pressure. In practice, manometers are most commonly used for the determination of relative pressure.

Differential pressure

Differential pressure references the difference in pressure between two points. The main feature of differential pressure manometers are the two separate pressure connections, for example, for measuring the pressure before and after pumps. Differential pressure manometers are often used where pressures are compared with each other. This can be in the case of a sluice in order to control fans, to detect the pressure in front of and behind a filter to determine the degree of soiling or also air speed, with the help of a pitot tube. Another example is an HVAC contractor who compares the difference in air pressure before and after a filter to determine whether or not the filter is soiled and needs to be replaced. To measure the differential pressure, you can use the handheld measuring instruments from our product range.

Which medium should the measurements be carried out in?

When selecting your manometer, please consider which medium it should be used for. The manometers we offer can measure the pressure in the air, liquids and gases. In the technical specifications of manometers, you can see which medium each device is compatible with. Some of our manometers have to be configured accordingly. It is also important to know if the material abrasive or acidic. The nature of the material helps narrow down the selection of manometer products to only those compatible with the specific kind of material. For example, the type of membrane or diaphragm used in a flanged manometer or pressure gauge determines the gauge’s compatibility with certain kinds of liquids or gases. Ceramic diaphragms are highly resistant to process fluids with abrasive particles, but ceramic diaphragms can be incompatible with strong acids. Whereas stainless steel diaphragms are easy to clean and sterilize, and thus frequently used in the hygienic processing of food and pharmaceutical products. Safety note: with our manometers it is strictly prohibited to conduct measurements of explosive and corrosive gases or liquids!

Do you need a built-in or a handheld unit?

Will measurements be taken in multiple locations or just one? In other words, does the manometer need to be portable or stationary?
Depending on the application, at PCE Instruments, in the category Manometers, you will find a large selection of built-in and handheld instruments.

Our stationary manometers are ideal for continuous monitoring of pressure in various application fields. Stationary manometers can be digital or analogue. In addition, stationary manometers are particularly robust and therefore are ideal for harsh industrial environments. Digital manometers that are stationary have large, easy-to-read LCD screens that clearly display measurements in real time in pressure units such as bar, psi, Pa, etc. Some of our measuring instruments have an analogue output which is configurable as, for example, 4 ... 20 mA or as 0 ... 10 V. These differential pressure sensors are often used in control technology.

If you need a flexible manometer for spot-like measurements, you should opt for our mobile handheld devices. For example, a portable manometer can be used to check pipe pressures in multiple pump houses located throughout a municipality. A handheld differential pressure manometer can be used in a quality control laboratory to test air filters to ensure the filters interfere minimally with HVAC system performance. PCE's portable or handheld manometers are typically digital battery-powered devices with added functionality such as the ability to store minimum and maximum values or to record measurements over a period of time. Those manometers with data-logging capabilities often feature an SD card memory, USB port or RS-232 interface to transfer data to a PC for detailed analysis and reporting. In our shop you will find mobile digital manometers for application in the laboratory, for monitoring an outdoor installation or wherever some flexible measuring devices are required. The mobile manometers are supplied with software, which means that later the recorded data can be evaluated on the PC. This information is often used for quality control, troubleshooting or printout in documents.

Measuring range and accuracy

Other important criteria when selecting a manometer are the measuring range and accuracy. It should be noted that the pressure to be expected should lie in the middle third of the manometer's display range. Our stationary pressure gauges have a measuring range of 0.1 … 600 bar and are divided into the accuracy classes 0.05 / 0.1 / 0.2 and 0.5. The mobile differential pressure gauges of the PCE range can measure pressures of +/- 1000 to +/- 7000 mbar with an accuracy of 0.3% or 2%.

Selection of the connection thread and the membrane

The stationary manometers have different connections and diaphragms, that is why you should take a look at the technical data of our devices or ask one of our technicians for advice. The manometers are suitable for different liquids or gases depending on different diaphragms and are optionally supplied with a ceramic or a stainless-steel membrane.

Depending on the device, you have a choice of up to 6 different threaded connections, for example G ½ "DIN 3852 or ¼" NPT. In our online shop, you can select the desired thread and configure the manometer individually for your use.

If you have any questions about the manometer products found on this website, please contact the friendly and knowledgeable technical support staff at PCE at or +44 (0) 2380 987 035 for PCE Instruments UK, or at or +1 (561) 320-9162 for PCE Americas Inc.