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. 136-5980
Fabrikantnummer836P-D2GMGB36PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 25bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5981
Fabrikantnummer836P-D2GFGB36PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 25bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-6003
Fabrikantnummer836P-D2GMGC36PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 248.21bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5996
Fabrikantnummer836P-D2GFGC80PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 551.58bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5991
Fabrikantnummer836P-D2NMGA20PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-6002
Fabrikantnummer836P-D2GMGC58PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 399.89bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5994
Fabrikantnummer836P-D2GFGC10PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5971
Fabrikantnummer836P-D2NFGC58PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 400bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-6004
Fabrikantnummer836P-D2GFGC14PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 100bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5985
Fabrikantnummer836P-D2NMGC30PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5983
Fabrikantnummer836P-D2NFGB14PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 10bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5974
Fabrikantnummer836P-D2NFGA14PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 1bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5993
Fabrikantnummer836P-D2NFGC20PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 137.89bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5977
Fabrikantnummer836P-D2GFGA36PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 2.49bar ±1 % Analogue, PNP Gas, Liquid, Steam - G1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5997
Fabrikantnummer836P-D2NFGB20PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 13.78bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5992
Fabrikantnummer836P-D2NFGA30PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5969
Fabrikantnummer836P-D2NFGC14PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 100bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5988
Fabrikantnummer836P-D2NMGB14PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative 0bar 10bar ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5995
Fabrikantnummer836P-D2NMAA30PA-D4
FabrikantAllen Bradley
€ 402,00
Each
Aantal stuks
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc
RS-stocknr. 136-5990
Fabrikantnummer836P-D2NFGC10PA-D4
FabrikantAllen Bradley
€ 371,00
Each
Aantal stuks
Relative - - ±1 % Analogue, PNP Gas, Liquid, Steam - NPT 1/4 4 → 20 mA 4-Pin M12 DC Micro Connector IO-LINK - 450 mA 15 → 35 V dc