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PS-04 MAX - new version of STAG pressure sensor

05.02.2025


The latest version of the popular STAG sensor has been equipped with pressure and vacuum sensors up to 5.5 bar. This allows the PS 04 MAX to support turbocharged engines. 

How do STAG PS -04 sensors work? 

All sensors in the STAG PS - 04 series measure pressure, gas temperature and vacuum in the car's internal combustion engine. Each version of the PS 04 sensor has two sensors for measuring pressure and vacuum and one sensor for measuring gas temperature. 

The PS - 04 MAX sensor is equipped with sensors for pressure and vacuum up to 5.5 bar. In the previous version of the sensor - PS 04 PLUS - both sensors had a measurement range of up to 3.5 bar. 

 

 

STAG PS 04 PLUS 

STAG PS 04 MAX 

Pressure sensor  

3,5 bara 

5,5 bara 

Vacuum sensor  

3,5 bara 

5,5 bara 

 

Why do these detectors have different sensors? 

In demanding turbocharged engines, the measurement range of the standard sensor PS - 04 PLUS is not always sufficient. When the sensor indication is exceeded, the installation switches to gasoline. That's why we created the PS - 04 MAX sensor. By replacing the existing pressure sensor with a new one with a higher measurement range, we eliminated the problem of too small measurement range. 

Too high pressure is no longer a problem 

By raising the range of pressure read by the PS - 04 MAX sensor to 5.5 bar, we can serve a larger number of cars, especially those that have problems with over-pressure. STAG PS - 04 MAX sensor can be installed in gas installations in all types of internal combustion engines. 

Greater resistance to contamination 

In addition to increasing the measurement range, the new version of the PS - 04 MAX sensor offers additional benefits to the user. The new pressure sensors used in this version are more resistant to contaminants in LPG. This makes the sensor more durable, and the installation equipped with it can operate longer and more efficiently. 

How to identify the sensor version? 

Versions PS - 04 PLUS and MAX are constructed in the same housings, but differ in markings. PS - 04 MAX has all the mounting features of previous versions of STAG sensors. 

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