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. 448-8016
Fabrikantnummer5000BGN2000M3004A001
FabrikantGems Sensors
658,10 €
Each
Aantal stuks
Relative 71mbar 0.2bar 0.2 % Analogue Water/Diesel/Fuel Oil - G1/4 4 → 20 mA Wire Lead - 5 ms 20 mA 9 → 35 V dc
RS-stocknr. 124-2125
Fabrikantnummer9013FSG2J20
FabrikantSquare D
27,99 €
Each
Aantal stuks
Differential 15 (Approximate) psi, 20 (Rising) psi 30 (Approximate) psi, 65 (Rising) psi ±3 (Repeat) % 2NC Fresh Water - 0.25 in NPSF - Screw Clamp - - - -
RS-stocknr. 795-4727
Fabrikantnummer3100B0100S01B000
FabrikantGems Sensors
126,00 €
Each
Aantal stuks
Relative 0bar 100bar ±0.25 % Current Fluid, Gas - G1/4 4 → 20 mA DIN 43650 Type A - 1 ms 20 mA 8 → 30 V dc
RS-stocknr. 779-4200
FabrikantnummerPS61-10-4MGZ-A-SP
FabrikantGems Sensors
34,85 €
Each
Aantal stuks
- 15psi 60psi - SPST-NO Hydraulic - BSP 1/4 - Spade Terminal - - 100 VA 42 V dc
RS-stocknr. 463-5650
Fabrikantnummer404366/000-493-405-504-20-61/000
FabrikantJumo
274,20 €
Each
Aantal stuks
Absolute 0bar 10bar 0.5 % Analogue - - G1/2 4 → 20 mA DIN 43650 Type A - - - 10 → 30 V dc
RS-stocknr. 668-3024
Fabrikantnummer401010/000-492-405-502-20-61/000
FabrikantJumo
175,47 €
Each
Aantal stuks
Absolute 0bar 6bar - Analogue Air - G1/4 4 → 20 mA DIN 43650 Type A - 5 ms - 8 → 30 V dc
RS-stocknr. 896-8516
Fabrikantnummer3500B0016A01G000
FabrikantGems Sensors
151,80 €
Each
Aantal stuks
Absolute - 16bar 0.25 % Current Air, Gas, Water - G1/4 4 → 20 mA DIN 43650 Type A - - - 10 → 30 V dc
RS-stocknr. 123-7139
FabrikantnummerSDP601
FabrikantSensirion
33,43 €
Each
Aantal stuks
Differential -500Pa 500Pa 3 % I2C Air, Nitrogen Gas, Oxygen Gas - 5.2 mm Tube - - - 4.6 ms <6 mA 3.6 V
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. 398-6985
Fabrikantnummer0184457031003
FabrikantSuco
65,96 €
Each
Aantal stuks
- 0.3bar 1.5bar - Relay Air, Heating Oil, Hydraulic Fluid, Turpentine - G1/4 - DIN 43650 Type A - - 4 A 250 V
RS-stocknr. 746-3681
FabrikantnummerX5072-TB-A2-CA-H1-PA 10 bar A
FabrikantDruck
284,00 €
Each
Aantal stuks
Absolute - 10bar ±0.1 % Analogue Fluid - G1/4 4 → 20 mA DIN 43650 Type A - 10 ms 20 mA 7 → 28 V
RS-stocknr. 836-9026
FabrikantnummerADP5160
FabrikantPanasonic
35,75 €
Each
Aantal stuks
Relative - - ±1.25 % Amplified Air - - 4.5 V PCB - - 10 mA 5 V dc
RS-stocknr. 169-8094
FabrikantnummerADP51B63
FabrikantPanasonic
11,473 €
Each (In a Tube of 100)
Aantal stuks
Relative - - ±2.5 % Amplified Air - - 4 V PCB - - 10 mA -
RS-stocknr. 836-9039
FabrikantnummerADP51B63
FabrikantPanasonic
17,94 €
Each
Aantal stuks
Relative - - ±2.5 % Amplified Air - - 4 V PCB - - 10 mA -
RS-stocknr. 896-8529
Fabrikantnummer3500R0001G01B000
FabrikantGems Sensors
126,00 €
Each
Aantal stuks
Relative - 1bar 0.25 % Voltage Air, Gas, Water - G1/4 0 → 5 V DIN 43650 Type C - - - 30 V dc
RS-stocknr. 169-8090
FabrikantnummerADP5160
FabrikantPanasonic
24,385 €
Each (In a Tube of 100)
Aantal stuks
Relative - - ±1.25 % Amplified Air - - 4.5 V PCB - - 10 mA 5 V dc
RS-stocknr. 124-2124
Fabrikantnummer9013FHG2J27
FabrikantSquare D
45,38 €
Each
Aantal stuks
Differential 40 (Rising)psi 100 (Rising)psi ±3 (Repeat) % 2NC Air - 0.25 in NPSF - 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. 455-4624
Fabrikantnummer3100B0010G01B000
FabrikantGems Sensors
126,00 €
Each
Aantal stuks
Gauge 0bar 10bar 0.25 % Analogue Air Fluid, Hydraulic Fluid, Hydraulic Oil, Oil - G1/4 4 → 20 mA DIN 43650 Type C - 1 ms - 10 → 30 V dc
RS-stocknr. 835-3901
FabrikantnummerPT5415
Fabrikantifm electronic
101,30 €
Each
Aantal stuks
Relative 0bar 6bar ±0.5 % Analogue Gas, Liquid - G1/4 4 → 20 mA M12 Connector - 1 ms - 8.5 → 36 V dc