Pressure Sensors

Pressure sensors are devices that sense the applied pressure of gases or liquids. The output of the measurement is then converted into an electrical signal which reflects the amount of pressure applied.

There are various technologies used within pressure sensors. Depending on the requirements, this can influence their sensing accuracy and reliability. When the mechanical displacement within the sensor is turned into an electrical output signal there are 5 ways this can happen.


Resistive - These types of sensors use the change in electrical resistance of a strain gauge connected to the diaphragm.

Capacitive - Are highly sensitive and are able to measure low pressure under 10 bar while still withstanding large overloads.

Piezoelectric - These sensors use substances like Quartz to generate a charge on the surface when pressure is applied. Piezoelectric pressure sensors are ideal for measuring fast changing pressures.

Optical - These use interferometry to measure pressure changes in optical fibre. They are not disturbed by EMI and can be used in noisy or medical environments.


MEMS - This stands for micro-electro-mechanical system and contains capacitive or piezo pressure sensing mechanisms on silicon at micron level resolution.

Types of Pressure Sensors

Within the sensors, there are various properties which can be used to classify them. This includes what pressure range they measure, their operating temperature range or the pressure type they measure.

Absolute Pressure Sensor - This type of sensor measures pressure relative to the perfect vacuum (zero reference point).

Gauge Pressure Sensors - These are often used to measure atmospheric pressure and are sometimes referred to as relative pressure sensors.

Sealed Gauge Pressure Sensor - Like a gauge pressure sensor except they measure pressure relative to a fixed pressure, not the current ambient atmospheric pressure which can vary.

Differential Pressure Sensors - These can be used to measure the difference between two different pressures (differential pressure) which can be connected to either side of the sensor. They are often used to measure pressure drops, fluid levels and flow rates.

Pressure Sensor Applications

Pressure sensors are used in many applications in a large range of industries. These include medical, aviation, automotive and marine.


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Omschrijving Prijs Pressure Reading Type Minimum Pressure Reading Maximum Pressure Reading Accuracy Output Type Media Measured Calibrated Process Connection Analogue Output Electrical Connection Communication Protocol Response Time Maximum Current Supply Voltage
RS-stocknr. 772-9907
FabrikantnummerXMPA12B2131
€ 51,30
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 124-2141
FabrikantnummerXMLP2D5GD71F
€ 125,00
Each
Aantal stuks
- 0bar 2.5bar ±0.1 (Repeat) %, ±0.5 (Measurement) % Analogue Air, Fresh Water, Gas, Hydraulic Oil - G1/4 0 → 10 V M12 4-Pin Connector - ≤2 ms <7 mA 24 V dc
RS-stocknr. 609-7016
FabrikantnummerXMLB035A2S11
€ 180,00
Each
Aantal stuks
Differential 3.5bar 35bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 609-7094
FabrikantnummerXMPE12C2242
€ 80,40
Each
Aantal stuks
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water - G3/8 - PG13.5 Cable Gland - - 1.5 A -
RS-stocknr. 124-2170
FabrikantnummerXMPA12B2131C
€ 48,50
Each
Aantal stuks
Differential 0.3 (Falling) bar, 1.3 (Rising) bar 10.3 (Falling) bar, 12 (Rising) bar <3.5 (Repeat) % 2NC Air, Fresh Water, Sea Water - G1/4 - Screw Clamp - - - -
RS-stocknr. 324-0986
FabrikantnummerXMLA300D2S11
€ 167,00
Each
Aantal stuks
Differential 20bar 300bar 2 % Relay Hydraulic Fluid - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 124-2174
FabrikantnummerXMPA12C2142
€ 107,98
Each
Aantal stuks
Differential 1.3bar 12bar ±0.5 % 3NC - - G1/4 - Screw Terminals - - - -
RS-stocknr. 609-7044
FabrikantnummerXMLB300D2S11
€ 213,00
Each
Aantal stuks
Differential 22bar 300bar 2 % Relay Hydraulic Fluid - G1/4 - PG13.5 Cable Gland - - 0.1 (dc) A, 3 (ac) A 120 → 240 V ac, 250 V dc
RS-stocknr. 609-7088
FabrikantnummerXMPE12C2131
€ 80,40
Each
Aantal stuks
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water - G1/4 - PG13.5 Cable Gland - - 1.5 A -
RS-stocknr. 302-5838
FabrikantnummerXMLA010A2S11
€ 150,00
Each
Aantal stuks
Differential 0.6bar 10bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 835-2841
FabrikantnummerXMLR010G2N05
€ 269,00
Each
Aantal stuks
Differential 0bar 10bar ≤0.1 % 2x NPN-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid - G1/4 - M12 Connector - ≤5 ms ≤50 mA 24 V dc
RS-stocknr. 835-2857
FabrikantnummerXMLR040G2P05
€ 269,00
Each
Aantal stuks
Differential 0bar 40bar ≤0.1 % 2x PNP-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid - G1/4 - M12 Connector - ≤5 ms ≤50 mA 24 V dc
RS-stocknr. 399-1628
FabrikantnummerXMAV12L2135
€ 67,50
Each
Aantal stuks
Differential 1.3bar 12bar 3.5 % Relay Air, Fresh Water, Sea Water - G1/4 - Screw Terminals - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 199-399
FabrikantnummerXMPA12C2131
€ 58,50
Each
Aantal stuks
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water - G1/4 - PG13.5 Cable Gland - - 1.5 A -
RS-stocknr. 302-5844
FabrikantnummerXMLA020A2S11
€ 150,00
Each
Aantal stuks
Differential 1bar 20bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 324-0964
FabrikantnummerXMLA160D2S11
€ 172,00
Each
Aantal stuks
Differential 10bar 160bar 2 % Relay Hydraulic Fluid - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 361-3378
FabrikantnummerXMLB004A2S12
€ 178,00
Each
Aantal stuks
Differential 0.25bar 4bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water - G1/4 - M20 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 609-6912
FabrikantnummerXMLA002A2S11
€ 144,00
Each
Aantal stuks
Differential 0.15bar 2.5bar 2 % Relay Air, Fresh Water, Hydraulic Fluid, Sea Water - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
RS-stocknr. 124-2134
FabrikantnummerXMLP006GD11F
€ 125,00
Each
Aantal stuks
- 0bar 6bar ±0.1 (Repeat) %, ±0.5 (Measurement) % Analogue Air, Fresh Water, Gas, Hydraulic Oil - G1/4 0.5 → 4.5 V M12 4-Pin Connector - ≤2 ms <5 mA 5 V dc
RS-stocknr. 752-2440
Fabrikantnummer9012GBW2
€ 555,23
Each
Aantal stuks
Differential 27psi 130psi ±0.1 → 1 % - Gas, Liquid Level - NPT 1/4 - 12" NPT - - 10 A 600 V