Absolute Pressure Sensors

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.

• Marine approved atmospheric pressure sensor - Marine-approved pressure sensor for atmospheric pressure measurement on ships. 4-20mA output, 800-1200mbar range.
• 800 to 1200 mbar atmospheric pressure transmitter - Reliable barometric pressure sensor for OEM applications requiring atmospheric pressure compensation in scientific and process instrumentation.

• IMP Low Cost Pressure Sensor
• DMP331 Precision Pressure Transmitter
• DMP320 0.5 msec Fast Response Pressure Sensor
• IWPT Wireless Battery Powered Pressure Sensor and Receiver

• 700 to 1100 millibar scaled 4 to 20mA output pressure sensor for barometric pressure measurement - 4-20mA output transmitter for monitoring barometric pressure from 700 to 1100 mbar absolute.
• 300 mmHg absolute vacuum pressure transducer with 10 volts output - Absolute pressure transducer for precise vacuum measurement. 0-300 mmHg range, 0-10V output, high accuracy.
• Power generation OEM engine oil pressure sensor with 75bar abs range and RS485 - Robust RS485 absolute pressure sensor for OEM engine oil monitoring in power generation. 0-75 bar range, G1/4 male process connection, and M12 electrical connector. 9-32V DC supply.
• Water pump input/output testing pressure sensor with 30 psi absolute range - Absolute pressure sensor for water pump testing with 30 psi range, 0-10V output, G1/4" male process connection, and Viton seal. Ideal for measuring positive pressure and vacuum.
• Manufacturing automation absolute pressure sensor with 100psia range and 0-10Vdc out - This absolute pressure sensor offers precise and reliable pressure measurement for pneumatic systems. With its 0-10Vdc output, it seamlessly integrates with industrial control systems.

• DMK457 Marine Approved Pressure Transmitter
• DMP331i High Accuracy Pressure Transmitter
• DMP333 High Range Precision Pressure Transmitter
• DMP331P Hygienic Flush Pressure Transmitter

• DMK331P Flush Diaphragm Pressure Sensor
• DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
• TM Silicon Strain Gauge Pressure Transducer
• SSPT Subsea Wet-Mateable Electrical Connector Pressure Sensor

• Cleaned oil contamination free 200bar absolute range 0-10V out pressure sensor
• 20 bar absolute low response time 4-20mA output dynamic freshwater pressure sensor for research use
• Barometric transducer with 23-34 inHg input range and 0-5Vdc output range
• SIL 2 certified 800 to 1200 mbar abs range air pressure transmitter
• 10 bar absolute 4-20mA natural gas pressure sensor for high temperature research use
• Gas analyser 75-125 kPa absolute range 0.5-4.5V ratiometric output pressure sensor
• 5 to 20 psi absolute ambient 4 to 20 ma pressure transmitter
• Air flow normalising calculation barometric pressure transmitter
• Measuring steam pressure up to 10bar with analog/digital output
• Agricultural irrigation low price 50psia range 0.5-4.5V ratiometric output water pressure sensor
• 5-18 psi absolute RS485 output air pressure sensor for flow monitoring density correction use
• 500-1100 mbar absolute range 0-5 volts output barometric pressure sensor

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.