Absolute pressure sensors are essential tools for engineers and scientists who need to measure pressures relative to a perfect vacuum.
Their versatility makes them ideal for a wide range of industrial and research settings, including leak testing, barometric pressure monitoring, and gas systems. Explore our comprehensive selection of absolute pressure measurement devices, offering a variety of output signals to suit your specific needs.
Choose from a variety of output options, including millivolt, amplified voltage, current loop, and digital, to seamlessly integrate with your existing systems.
DMK457 Marine Approved Pressure Transmitter - Marine approved pressure transmitter with 4-20mA current loop output for shipbuilding with optional CuNiFe housing for sea-water compatibility
DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor - All in one electronic switch, gauge and sensor designed specifically for use in the food, drink and biomedical industry for measuring process pressures.
DMP331P Hygienic Flush Pressure Transmitter - Sanitary pressure sensor wth exposed diaphragm with no crevices for high temperatures up to 300 Degrees Celsius in ranges from 100mb up to 40 bar gauge or absolute
DMP331 Precision Pressure Transmitter - Stainless steel pressure transmitter with ranges from 100mbar up to 40 bar gauge or absolute. Special options for ATEX , SIL2 and compound ranges.
IMP Low Cost Pressure Sensor - Versatile low price pressure sensor with a wide selection of electrical and mechanical options for customisation.
DMP320 0.5 msec Fast Response Pressure Sensor - High frequency response pressure sensor with a better than 0.5 millisecond response time and internal digital signal conditioning that samples readings at a rate of 10 kilohertz.
IWPT Wireless Battery Powered Pressure Sensor and Receiver - Wireless battery powered pressure sensor and receiver system for connecting pressure sensors without wires to a central wireless receiver which converts each received pressure signal channel to a 1-5Vdc, 4-20mA output, USB, Ethernet TCP, RS232 RTU, RS485 RTU or 2G 3G 4G mobile cellular network.
33X High Accuracy Digital Output Pressure Sensor - High precision pressure transducer with an accuracy of 0.05% full scale with a RS485, USB or RS232 digital interface for connecting to a PC.
35X Flush Diaphragm Digital Output Pressure Sensor - Highly accurate digitally compensated pressure transducer with G1/2 male flush pressure port.
LEO3 Current or Digital Output Pressure Gauge - LCD digital pressure gauge powered externally by a 2 wire series 4-20mA current loop or a digital interface.
SSPT Subsea Wet-Mateable Electrical Connector Pressure Sensor - This stainless steel ceramic sensing diaphragm based subsea connector pressure sensor provides a unamplified ratiometric millivolt output or an amplified analogue output signal corresponding to ranges from 0…1 bar (14.50 psi) up to 400 bar ( 5800 psi).
DMP331i High Accuracy Pressure Transmitter - High precision pressure transmitter with an accuracy of 0.1%FS BSL NLHR and digitally adjustable pressure ranges from 400mb up to 40 bar gauge & absolute.
- Atmospheric air pressure transducer with 10 volt output
- 5 to 20 psi absolute ambient 4 to 20 ma pressure transmitter
- Barometric 550 to 1150 hPa abs high resolution pressure transmitter
- Air flow normalising calculation barometric pressure transmitter
- 0.05 msec response time, 2 bar range pressure transducer
- 20 kg/cm² range 5Vdc output pressure transducer for potable water
- 300°C max temperature, 0 to 300 bar, high range pressure sensor
- Detecting water intake blockage on submerged reservoir intake screen using two sensors
- Barometric pressure sensor for hurricane tracking on uncrewed surface vessel
- Near-atmospheric pressure transmitter for hazardous gas test chambers
- Heating appliance chimney draft and barometric pressure testing using differential and absolute sensors
- Marine approved atmospheric pressure sensor
- Absolute Pressure Transmitters - Select absolute pressure transmitters with 4-20mA output, designed for precise measurements against a perfect vacuum. Ideal for leak testing, vacuum processes, and barometric-independent applications.
Waterproof Absolute Pressure Sensors - Discover robust waterproof absolute pressure sensors, ideal for reliable underwater pressure and level measurement where vented sensors are impractical. Learn how readings convert to gauge pressure. Suited for subsea, borehole, and marine deployments.
Absolute Reference Voltage Output Pressure Transducers - High voltage output absolute pressure transducers are essential for precise pressure measurements in applications where a perfect vacuum serves as the reference point.
Find out more about Absolute Pressure Sensors to determine which product options and capabilities will best meet your application requirements.
Absolute pressure sensors are engineered to measure pressure in relation to a perfect vacuum (0 PSI absolute). This distinction is critical in applications where the reference point must be absolute zero, rather than the fluctuating atmospheric pressure used in gauge pressure sensors.
Applications
- Leak Testing: By measuring pressure relative to a vacuum, absolute pressure sensors detect leaks in systems independently of changes in atmospheric pressure, ensuring the integrity of sealed environments.
- Barometric Compensation: In applications sensitive to atmospheric pressure fluctuations, absolute pressure sensors provide accurate readings by factoring in barometric changes. This is crucial for altitude measurements, weather monitoring, and process control systems.
- Atmospheric Pressure Measurement: These sensors directly measure the pressure exerted by the atmosphere, aiding in meteorological studies, aviation instrumentation, and environmental monitoring.
- Industrial Processes: Absolute pressure sensors monitor and control vacuum levels in manufacturing processes, ensuring product quality and process efficiency. They are used in leak detection systems, vacuum packaging, and distillation processes.
- Scientific Research: These sensors play a crucial role in scientific experiments requiring precise pressure measurements, such as vacuum chambers, gas analysis, and material characterization.
- Environmental Monitoring: Absolute pressure sensors are used in weather stations to measure barometric pressure, contributing to accurate weather forecasting and climate studies.
- Offshore Research & Exploration: Certain absolute pressure sensors are designed for underwater use, measuring pressure relative to a vacuum at significant depths. They play a crucial role in oceanographic research and subsea exploration.
Output Options
Absolute pressure sensors offer a range of output options to suit different system requirements.
- Millivolt Output: Provides a low-level voltage signal directly proportional to the applied pressure, commonly used with data acquisition systems and signal conditioners.
- Amplified Voltage Output: Delivers a higher-level voltage signal for easier integration with control systems and process instrumentation.
- Current Loop Output: Offers a 4-20 mA current signal, widely used in industrial automation for its inherent noise immunity and long-distance transmission capabilities.
- Digital Output: Provides pressure readings in digital format, typically via RS-232, RS-485, or I2C interfaces, enabling direct communication with computers and PLCs.