Which Types of Pressure Sensors Does Setra Systems Offer?

Updated

Setra Systems lists eight pressure sensor categories: differential, absolute, barometric, compound, gauge, submersible, vacuum, and UHP (ultra-high purity) pressure sensors. The right one depends on what your measurement is referenced against and where the sensor will be installed. For example, a gauge sensor reads pressure relative to ambient air, while an absolute sensor reads against a sealed vacuum reference — so the same physical pressure produces different readings depending on which type you choose.

The eight sensor types at a glance

Sensor type What it measures against Typical fit
Differential A second pressure port (the difference between two points) Filter and duct monitoring, room pressure, flow measurement
Gauge Ambient atmospheric pressure General HVAC/R, industrial and process readings
Absolute A sealed vacuum reference Barometric-independent readings, process and test work
Barometric Absolute pressure of the atmosphere Weather, altitude and ambient-pressure compensation
Compound Both vacuum and positive gauge pressure around zero Systems that swing between vacuum and pressure
Submersible Hydrostatic head, with the sensor submerged Tank level and water/wastewater depth
Vacuum Pressure below ambient Vacuum systems and process control
UHP Pressure in high-purity gas lines Semiconductor and other contamination-sensitive processes

How to choose the right type

Work through these three questions before opening a product page:

  1. What is your reference point? If you need the difference between two points (e.g., across a filter), choose differential. If you need pressure relative to the room, choose gauge. If the reading must not change with weather or altitude, choose absolute.
  2. Where does the sensor sit? Submerged in a tank points to submersible; in a high-purity gas line, UHP; in a system that crosses from vacuum to positive pressure, compound.
  3. What does the application need? Setra organizes products by market — building automation, cleanrooms, data centers, energy management, fiber optic, general industrial, healthcare, scales and weighing, and semiconductor — and by application, including HVAC/R, calibration, medical, oil and gas, tank level, test and measurement, and water/wastewater. Matching your application first narrows the list quickly.

Where to find specifications

The Products menu on setra.com breaks out each sensor category as its own page, alongside related items such as room pressure monitors, pressure calibrators, particle counters, power meters and accessories, humidity/temperature sensors, and wireless sensing. Specs, accuracy figures and model options live on those individual product pages — the category list itself only tells you which type exists, not which model fits. Setra describes itself as a USA manufacturer of high-accuracy pressure transducers and related sensing devices, and its site flags "premium" positioning, so expect industrial-grade rather than entry-level consumer products.

A quick example

Suppose you are monitoring the pressure difference between a cleanroom and its surrounding corridor. A gauge sensor would only tell you the room's pressure relative to the outside air at that moment; a differential sensor compares the room directly against the corridor and gives the value cleanroom standards actually care about. That single reference-point decision eliminates most of the eight categories before you look at a datasheet.

For current models, ranges and accuracy specifications, start from the Pressure Sensors section of setra.com and follow the category that matches your reference point and installation.