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Pressure Sensor

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Pressure sensors are important safeguards to many kinds of equipment that involve pressurized fluid. Read More…

Pressure Sensor Pressure sensors are instruments used to measure and report the pressure of a fluid in an enclosure. Pressure sensors can be used to measure fuel pressure in a fuel line, oil pressure in an engine, barometric pressure at a weather station, water pressure in a pump system and many other kinds of pressure in many contexts.
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Leading Manufacturers

West Conshohocken, PA  |  610-825-3310

Strainsert specializes in standard and custom pressure transducers for industry leaders in space, on the ground and in the ocean. With a warranty that's twice the standard, we are confident our comprehensive design, testing, service and support will meet your unique purpose.

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Strainsert Company $$$

Freemont, CA  |  510-274-1872

Loadstar Sensors is a leading provider of sensors and sensor based solutions for a wide variety of applications. We offer capacitive and resistive load cells, torque sensors, displacement sensors, pressure sensors, level sensors, temperature sensors and other types of sensors with USB & wireless output for automotive, aerospace, medical device, industrial and consumer applications. Our sensor interface products enable users to communicate via USB, Bluetooth, WiFi, ZigBEE or other wireless protocols with PCs, Tablet or Smartphones.

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Loadstar Sensors, Inc. $$$

Newell, WV  |  800-727-5646

For more than 100 years, Marsh Bellofram has been an industry-leading global manufacturer of high-performance OEM, industrial and process control instrumentation, including timers and counters, digital controllers and panel meters, RTD’s and thermocouples, pressure instruments and gauges, FRLs, cylinders, natural gas and propane pressure regulators, air pressure regulators and transducers, tank and liquid level measurement systems, pump and motor protection switches and alternating relays, as well as sensors, DC tachometers, encoders, industrial diaphragms, and specialty silicones.

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Marsh Bellofram Corporation $$$

Amherst, NH  |  800-216-3636

ControlAir is a worldwide leading manufacturer of precision pneumatic and electro pneumatic control products essential to automated industrial equipment, process control systems and instrumentation, laboratory research and analysis, energy management, fluid power, robotics, and valve automation applications. An ISO-9001:2015 registered quality system assures tightly controlled specifications and processes, resulting in dependable pneumatic controls.

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ControlAir, Inc. $$$

Danbury, CT  |  800-869-5747

Since 1963, PMC has been recognized as a leader in innovative technical solutions for the design of transmitters and transducers for the measurement of pressure, level, vacuum and other measurands in niche applications. PMC was the first manufacturer to offer a flush-mounted transmitter with a patented design to provide a rugged and reliable design for the measurement of in-process pulp in the paper industry, waste water and other erstwhile difficult to measure fluid pressures and level.

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PMC Engineering $$$
placeholder image Strainsert Company Loadstar Sensors, Inc. Marsh Bellofram Corporation ControlAir, Inc. PMC Engineering

Because so many industries involve pressurized fluid in some way, pressure sensors are very important tools throughout industry. Wastewater treatment, petrochemical extraction and development, plastics processing and thermoforming, automotive manufacturing, aerospace products development and a long list of other industries rely on pressure sensors in some capacity to ensure the effectiveness and safety of their products and processes.

SITRANS P300 Hygienic Pressure Transmitter SITRANS P300 Hygienic Pressure Transmitter - Siemens Process Instrumentation

Pressure sensors are also often known as pressure transmitters; the two terms are synonymous, and they are descriptive of a pressure sensor's purpose: to make monitoring technicians or systems aware of the extent to which an enclosure is pressurized. Some pressure sensors can also be pressure regulators, which both sense and control pressure levels, sometimes automatically and sometimes semi-automatically. Such sensors are designed to monitor changes in pressure and are often connected to safety devices that activate shut-off switches.

There are five types of pressure sensors: gauge, absolute, vacuum, differential, and sealed. Gauge sensors are calibrated to measure the pressure relative to atmospheric pressure at a given location. Atmospheric pressure at sea level is approximately 14.7 PSI. Because many, if not most, of the systems, equipment and processes that require the use of pressure sensors are only concerned with pressure levels relative to 14.7 PSI, gauge sensors are the most common of the five types of pressure sensors.

Absolute sensors measure the pressure relative to 0 PSI, which is the complete absence of pressure. Since it is impossible to completely evacuate an enclosure (no prefect vacuums exist in nature either), it is more accurate and meaningful to say that absolute pressure sensors measure pressure without regard for ambient pressure conditions. Such pressure sensors are useful in conditions that are subject to frequent ambient pressure changes; scuba gear, for example, often employs absolute pressure sensors.

Vacuum sensors are used to measure pressure that is less than local atmospheric pressure, while differential sensors measure the difference between two or more pressure inputs in the unit. The last kind of sensor, sealed, is similar to the gauge sensor, except that it measures pressure relative to the pressure at sea level, 16.4 PSI.

Pressure Sensor Informational Video