Pressure Sensors | Pressure Transducers | RS
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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.

    3578 표시되는 제품 Pressure Sensors

    RS PRO
    Gauge
    0bar
    20bar
    ±0.25%
    I2C
    Air, Water, Mixed Oil, Fluids
    -
    -
    -
    -
    -
    -
    -
    3.3Vdc
    5-Pin Connector
    Stainless Steel
    -
    -
    +80℃
    -20℃
    Panel
    RS PRO
    Gauge
    0bar
    10bar
    ±0.15%
    Voltage
    Air, Water, Mixed Oil, Fluids
    -
    -
    Wire Lead
    -
    <1ms
    -
    -
    2.0mA dc
    -
    Stainless Steel
    -
    -
    +125℃
    -40℃
    Panel Mount
    RS PRO
    Relative
    -1bar
    1bar
    <±0.25 %
    Current
    Sewage, Viscous Fluid, Water
    G3/4
    4 → 20 mA
    M12 Connector
    -
    -
    28 mA
    -
    9 → 32 V dc
    -
    Stainless Steel
    -
    IP65
    +125°C
    -20°C
    Semi-Flush
    RS PRO
    Relative
    0bar
    0.25bar
    <±0.25 %
    Voltage
    Oil, Water
    G1/4
    0.5 → 4.5 V
    DIN 43650 Type A
    -
    -
    6 mA
    -
    9 → 32 V dc
    -
    Stainless Steel
    -
    IP65
    +125°C
    -20°C
    Threaded
    RS PRO
    Relative
    0bar
    350bar
    ±0.5%
    I2C
    Air, Water, Mixed Oil, Fluids
    -
    -
    -
    -
    -
    -
    -
    3.3Vdc
    5-Pin Connector
    Stainless Steel
    -
    -
    +80℃
    -20℃
    Panel
    RS PRO
    Gauge
    0bar
    25bar
    ≤0.5 %
    Analogue
    Gas, Liquid
    G1/4
    4 → 20 mA
    M12 Connector
    -
    ≤3 ms
    -
    -
    10 → 30 V dc
    -
    Stainless Steel
    -
    IP67
    +125°C
    -20°C
    Not Front-Flush
    WIKA
    Absolute, Gauge, Vacuum
    0bar
    0.2bar
    ±1 to ±2.4 %
    -
    -
    -
    -
    -
    -
    -
    -
    A-10
    -
    -
    -
    -
    -
    -
    -
    -
    WIKA
    Absolute, Gauge, Vacuum
    -250Pa
    250Pa
    -
    -
    -
    -
    -
    -
    -
    -
    -
    A2G-50
    -
    -
    -
    -
    -
    -
    -
    -
    Siemens
    Relative
    0bar
    100bar
    0.25 %
    Analogue
    Aggressive Media, Gas, Liquid, Non-Aggressive Media, Vapour
    G1/2
    4 → 20 mA
    DIN EN 175301 Connector, M16
    -
    <5 ms
    20 mA
    -
    7 → 33 V dc
    -
    Stainless Steel
    -
    IP65, IP67
    +85°C
    -25°C
    Threaded
    Endress+Hauser
    Absolute, Gauge
    400mbar
    400bar
    0.3 %
    Analogue
    -
    -
    -
    -
    -
    -
    -
    Cerabar PMP21
    -
    -
    -
    -
    -
    -
    -
    -
    WIKA
    -
    0bar
    400bar
    0.5 %
    Analogue
    Gas, Liquid
    G1/4
    4 → 20 mA
    M12 x 1
    -
    < 4 ms
    -
    A-10
    8 → 30 V dc
    -
    Stainless Steel
    -
    IP65
    +80°C
    0°C
    -
    WIKA
    Gauge
    -1bar
    5bar
    ± 1 %
    SPDT
    -
    -
    -
    -
    -
    -
    -
    MW
    -
    -
    -
    -
    -
    -
    -
    -
    Norgren
    Relative
    0bar
    600bar
    ?0.5 %
    Transistor
    Gas, Liquid Level
    -
    -
    -
    -
    -
    -
    34D
    30 V dc
    IO-Link
    -
    -
    IP67
    -
    -
    -
    ifm electronic
    Relative
    0bar
    400bar
    <±2.5 %
    2NO
    Gas, Liquid
    G1/4
    -
    M12 Connector
    -
    -
    500 mA
    -
    9.6 → 32 V dc
    -
    FPM, PBT, PC, Stainless Steel
    -
    IP67
    +80°C
    -25°C
    -
    WIKA
    Absolute, Gauge, Vacuum
    0bar
    40bar
    ±1 to ±2.4 %
    -
    -
    -
    -
    -
    -
    -
    -
    A-10
    -
    -
    -
    -
    -
    -
    -
    -
    Endress+Hauser
    Absolute, Gauge
    400mbar
    40bar
    0.5 %
    Analogue
    -
    -
    -
    -
    -
    -
    -
    Ceraphant PTP33B
    -
    -
    -
    -
    -
    -
    -
    -
    Endress+Hauser
    Absolute, Gauge
    400mbar
    40bar
    0.3 %
    Analogue
    -
    -
    -
    -
    -
    -
    -
    Cerabar PMP23
    -
    -
    -
    -
    -
    -
    -
    -
    Telemecanique Sensors
    -
    0bar
    10bar
    2 %
    1CO
    Corrosive Fluid
    -
    -
    PG 13.5
    -
    -
    100 mA @ 250 V dc, 3 A @ 120 V ac
    -
    240 V ac, 250 V dc
    -
    Zinc Alloy
    -
    IP65, IP66
    +158°C
    -13°C
    Panel Mount
    Gefran
    Absolute
    0bar
    10bar
    ±0.5 %
    Analogue
    Hydraulic Fluid, Pneumatic Fluid
    G1/4
    0 → 10 V
    M12 Connector
    -
    1 ms
    -
    -
    15 → 30 V dc
    -
    -
    -
    IP67
    +105°C
    -40°C
    -
    Gems Sensors
    -
    0.7bar
    4.1bar
    ±0.1 bar
    SPST-NO
    Gas, Liquid
    G1/4
    -
    1/4 x 1/32 Spade Terminal
    -
    -
    -
    -
    -
    -
    Zinc Plated Steel
    -
    -
    +121°C
    -40°C
    Thread Mount
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