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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Description Prix 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
N° de stock RS 124-2171
Référence fabricantXMPA12B2142
49,85 €
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Unité
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 - - - -
N° de stock RS 324-0964
Référence fabricantXMLA160D2S11
172,00 €
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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
N° de stock RS 124-2170
Référence fabricantXMPA12B2131C
48,50 €
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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 - - - -
N° de stock RS 361-3687
Référence fabricant9012ADW7S1M12
661,41 €
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Differential 38bar 340bar - - Fluid, Oil - G3/8 - PG13.5 Cable Gland - - 3 A dc, 5 A ac 120 → 240 V dc, 120 → 600 V ac
N° de stock RS 302-5838
Référence fabricantXMLA010A2S11
150,00 €
Each
Unité
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
N° de stock RS 324-0986
Référence fabricantXMLA300D2S11
167,00 €
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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
N° de stock RS 609-7050
Référence fabricantXMLB500D2S11
213,00 €
Each
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Differential 7bar 447.4bar 2 % Relay Hydraulic Fluid - G1/4 - PG13.5 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
N° de stock RS 324-1024
Référence fabricantXMLB020A2S11
182,00 €
Each
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Differential 1.3bar 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
N° de stock RS 124-2163
Référence fabricantXMPA06B2131
39,20 €
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Differential 0.2 (Falling) bar, 1 (Rising) bar 4.8 (Falling) bar, 6 (Rising) bar <3.5 (Repeat) % 2NC Air, Fresh Water, Sea Water - G1/4 - Screw Clamp - - - -
N° de stock RS 124-2130
Référence fabricantXMLA070D2C11
175,00 €
Each
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Differential 2 (Falling) bar, 5 (Rising) bar 62.5 (Falling) bar, 70 (Rising) bar <2 (Repeat) % 1CO Hydraulic Oil - G1/4 - DIN43650 Male 4-Pin Connector - - 3 A 240 V ac, 250 V dc
N° de stock RS 324-1018
Référence fabricantXMLB010A2S11
180,00 €
Each
Unité
Differential 0.7bar 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
N° de stock RS 124-2177
Référence fabricantXMPC06C2941S701
71,70 €
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Differential 1bar 6bar ±0.5 % 3NC - - G1/4 - Screw Terminals - - - -
N° de stock RS 124-2161
Référence fabricantXMLRM01G1P75
298,00 €
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Differential -1 (Rising) bar, -0.97 (Falling) bar -0.08 (Rising) bar, -0.05 (Falling) bar ≤0.2 (Repeat) %, ≤0.6 (Output) %, ≤1 (Overall) % Analogue, PNP-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid - G1/4 0 → 10 V M12 4-Pin Connector - ≤10 (Analogue) ms, ≤5 (Discrete) ms ≤50 mA 24 V dc
N° de stock RS 609-7094
Référence fabricantXMPE12C2242
80,40 €
Each
Unité
Differential 1.3bar 12bar 3.5 % - Air, Fresh Water, Sea Water - G3/8 - PG13.5 Cable Gland - - 1.5 A -
N° de stock RS 124-2164
Référence fabricantXMPA06B2131C
41,70 €
Each
Unité
Differential 0.2 (Falling) bar, 1 (Rising) bar 4.8 (Falling) bar, 6 (Rising) bar <3.5 (Repeat) % 2NC Air, Fresh Water, Sea Water - G1/4 - Screw Clamp - - - -
N° de stock RS 124-2166
Référence fabricantXMPA06B2141C205
51,80 €
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Differential 0.2 (Falling) bar, 1 (Rising) bar 6bar <3.5 (Repeat) % 2NC Air, Fresh Water, Sea Water - G1/4 - Screw Clamp - - - -
N° de stock RS 361-3429
Référence fabricantXMLA300D2S12
167,00 €
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Differential 20bar 300bar 2 % Relay Hydraulic Fluid - G1/4 - M20 Cable Gland - - 3 A ac, 100 mA dc 120 → 240 V ac, 250 V dc
N° de stock RS 835-2845
Référence fabricantXMLR010G2P05
269,00 €
Each
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Differential 0bar 10bar ≤0.1 % 2x PNP-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid - G1/4 - M12 Connector - ≤5 ms ≤50 mA 24 V dc
N° de stock RS 835-2879
Référence fabricantXMLR400M2P05
283,00 €
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Differential 0bar 400bar ≤0.1 % 2x PNP-NO/NC Air, Fresh Water, Hydraulic Oil, Refrigerator Fluid - G1/4 - M12 Connector - ≤5 ms ≤50 mA 24 V dc
N° de stock RS 609-6912
Référence fabricantXMLA002A2S11
144,00 €
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Unité
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