Absolute/gage pressure transmitters


Relative and absolute pressure transmitters are essential measurement devices used to gauge pressure in relation to atmospheric pressure or a complete vacuum. This description provides a comprehensive overview of their features, operation, and diverse applications.


Relative pressure transmitters measure the pressure difference between the measured pressure and the surrounding atmospheric pressure. On the other hand, absolute pressure transmitters provide measurements relative to a total vacuum, without considering external atmospheric pressure.


These devices operate using highly sensitive pressure sensors and advanced signal conversion technologies. They compare the detected pressure with a known reference and produce an output signal representing the measured value in standard pressure units.


Relative and absolute pressure transmitters find applications in various industrial settings, including liquid level monitoring, production process control, environmental condition monitoring, and much more. They are also utilized in fields such as industrial automation, machinery performance monitoring and control, and safety and protection systems.

Thanks to their precision and reliability, relative and absolute pressure transmitters are vital for ensuring operational efficiency, safety, and quality in industrial processes.

In conclusion, relative and absolute pressure transmitters are highly versatile and crucial measurement devices for various industries. Their cutting-edge technology plays a key role in optimizing industrial operations and maintaining high safety standards, by providing accurate and reliable measurements.

NOVUS NP400 relative pressure transmitter series is a great solution for cost-effective pressure measurement.

Process connection: external thread  ½ BSP 

Thin-film-on-steel sensor cell
Measuring Range: from 2,5 to 600 bar
Output 4-20 mA

Accuracy +/- 1% FS. Ranges from 0 to 35 bar - 1/4 "and 1/2" connections. 4-20 mA output. With integrated impulse damper.

Relative pressure ranges from 0 to 25 Bar Output signal: 4-20 mA Pressure connections: G1 / 4" . Accuracy +/- 1% F.S Temperature compensated and laser calibrated

Ranges up to 100 bar
Output signal 4 - 20 mA
Accuracy: +/- 1% FS
Standard pressure connection G 1 / 4A

ATEX Approval Ex nA IIA T3 Gc

Pressure measurement of any gas, liquid or oil.
High display resolutions
One-touch connector type for easy wiring and maintenance

Switching output: 2 transistors PNP
Output: 4-20 mA
Ceramic sensor or thin film on steel
Configurable via NFC Smartphone App
Process connection: 1/4 "Gas-M

Pressure transducers for measurements of liquids or gases. Measurements of absolute and relative pressure. Ranges up to 400 bar Accuracy: ± 0.2% Hysteresis, repeatability: 0.05%

Pressure transducers for measurements of liquids or gases.
Ranges from 250 mBar to 10 Bar
Accuracy: ± 0.2%


● Rated pressure
: negative pressure (-101.3 to 0.0kPa)
standard pressure (0 to 100.0kPa, 0 to 1,000kPa)
compound pressure (-101.3 to 100.0kPa)
● Compact design: W11.8×H29.3×L24.8mm (including pressure port)
● Analog output: Voltage (1-5VDC), current (DC4-20mA)
● Power supply: 12-24VDC ±10

Transmitters in industrial execution for measurements of relative pressures, vacuum, measurements of absolute pressure, of liquids, gases and steam. ATEX Eexia execution. Accuracy ± 0.075% f.s. HART protocol.

Ranges up to 600 bar rel.
Absolute and relative pressure
Output signal: 4 ... 20 mA
Process connection 1/4 "G
M12 electrical connection
Accuracy: 1% F.S.