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    Pressure Sensors

    What are 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. You can find out more on our useful pressure sensors guide.

    There are various sensor technologies used within pressure sensor devices. Depending on the measurement requirements, this can influence their sensing accuracy and reliability. The mechanical displacement within the sensor is turned into an electrical output signal which is achieved with 5 different methods.

    • Resistive Sensors - These types of sensors use the change in electrical resistance of a strain gauge connected to the diaphragm.
    • Capacitive Sensors - Are highly sensitive and are able to measure low pressure under 10 bar while still withstanding large overloads.
    • Piezoelectric Sensors - 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 Sensors - 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 – Short for micro-electro-mechanical system and contains capacitive or piezo pressure sensing mechanisms on silicon at micron level resolution.

    Types of Pressure Sensors

    There are various properties which can be used to classify the type of sensor it is and its appropriate application, including; 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 Sensors - Similar to gauge pressure sensors 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 a wide variety of applications across many industries. These include medical, aviation, automotive and marine. Take a look at our comprehensive range of pressure sensors, many brought to you from industry leading brands including our very own, RS Pro.

    3487 Products showing for Pressure Sensors

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    5bar
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    G1/4
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    M2 (Din Plug)
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    +85°C
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    I2C
    Air, Water, Mixed Oil, Fluids
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    3.3Vdc
    5-Pin Connector
    Stainless Steel
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    +80℃
    -20℃
    Panel
    Relative
    0bar
    100bar
    ±0.25 %
    Current
    Air, Gas, Hydraulic Fluid, Liquid, Water
    G1/4
    4 → 20 mA
    DIN 43650 Type C
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    20 mA
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    9 → 32 V dc
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    Stainless Steel
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    IP65
    +135°C
    -20°C
    Threaded
    Relative
    0bar
    10bar
    ±0.25 %
    Analogue
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    G1/4
    0 → 5 V
    M12 4-pin
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    -
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    IPS
    9 → 32 V dc
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    Stainless Steel
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    +80°C
    -20°C
    Threaded
    Relative
    0bar
    1bar
    <±0.25 %
    Current
    Oil, Water
    G1/4
    4 → 20 mA
    DIN 43650 Type A
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    28 mA
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    9 → 32 V dc
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    Stainless Steel
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    IP65
    +125°C
    -20°C
    Threaded
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    20bar
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    G1/4
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    M2 (Din Plug)
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    +85°C
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    Oil, Water
    G1/4
    4 → 20 mA
    DIN 43650 Type A
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    -
    28 mA
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    9 → 32 V dc
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    Stainless Steel
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    IP65
    +125°C
    -20°C
    Threaded
    Gauge
    0bar
    10bar
    ±0.5%FS
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    Air, Fluid, Mixed Oil, Water
    G1/4A ISO 1179-2
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    Circular Aviation IEC61076-2-101
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    M20
    8 to 30 V dc
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    Stainless Steel 316L
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    85°C
    -30°C
    Threaded
    Gauge
    0bar
    10bar
    ±0.5%FS
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    Air, Fluid, Mixed Oil, Water
    G1/4A ISO 1179-2
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    Angular DIN175301-803A
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    M20
    8 to 30 V dc
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    Stainless Steel 316L
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    85°C
    -30°C
    Threaded
    Gauge
    0bar
    10bar
    ≤0.5 %
    Analogue
    Gas, Liquid
    G1/4
    4 → 20 mA
    M12 Connector
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    ≤3 ms
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    10 → 30 V dc
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    Stainless Steel
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    IP67
    +125°C
    -20°C
    Not Front-Flush
    Gauge
    0bar
    20bar
    ±0.25%
    I2C
    Air, Water, Mixed Oil, Fluids
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    3.3Vdc
    5-Pin Connector
    Stainless Steel
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    +80℃
    -20℃
    Panel
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    0bar
    0.25bar
    <±0.25 %
    Voltage
    Oil, Water
    G1/4
    0.5 → 4.5 V
    DIN 43650 Type A
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    6 mA
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    9 → 32 V dc
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    Stainless Steel
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    IP65
    +125°C
    -20°C
    Threaded
    Relative
    0bar
    50mbar
    ±0.25 %
    Analogue
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    G1/4
    4 → 20 mA
    M12 Connector
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    -
    20 mA
    IPSL
    9 → 32 V dc
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    Stainless Steel
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    -
    +80°C
    -20°C
    Threaded
    Relative
    0bar
    50mbar
    ±0.25 %
    Analogue
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    G1/4
    0 → 5 V
    M12 Connector
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    -
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    IPSL
    9 → 32 V dc
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    Stainless Steel
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    -
    +80°C
    -20°C
    Threaded
    Gauge
    0bar
    7bar
    ±0.25%
    I2C
    Air, Water, Mixed Oil, Fluids
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    3.3Vdc
    5-Pin Connector
    Stainless Steel
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    -
    +80℃
    -20℃
    Panel
    Gauge
    0bar
    250bar
    ±0.5%FS
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    Air, Fluid, Mixed Oil, Water
    G1/2B EN837
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    Angular DIN175301-803A
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    M20
    8 to 30 V dc
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    Stainless Steel 316L
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    85°C
    -30°C
    Threaded
    Relative
    0bar
    0.1bar
    <±0.25 %
    Voltage
    Oil, Water
    G1/4
    0.5 → 4.5 V
    DIN 43650 Type A
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    6 mA
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    9 → 32 V dc
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    Stainless Steel
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    IP65
    +125°C
    -20°C
    Threaded
    Absolute
    -1bar
    5bar
    ±0.5%FS
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    Air, Fluid, Oil, Water
    G1/4A ISO 1179-2
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    Angular DIN 175301-803A
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    M20
    8 to 30 V dc
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    Nylon, Stainless steel 316L
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    85°C
    -30°C
    Threaded
    Relative
    0bar
    400bar
    ±0.25 %
    Analogue
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    G1/4
    4 → 20 mA
    M12 4-pin
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    20 mA
    IPS
    9 → 32 V dc
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    Stainless Steel
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    +80°C
    -20°C
    Threaded
    Relative
    -1bar
    24bar
    ±0.25 %
    Voltage
    Air, Gas, Hydraulic Fluid, Liquid, Water
    G1/4
    0 → 5 V
    DIN 43650 Type C
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    9 → 32 V dc
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    Stainless Steel
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    IP65
    +135°C
    -20°C
    Threaded
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