When the tank wall has no holes or flanges position, especially on pressure vessels, traditional level gauges or switches alarm devices are failed to be installed.
At this time, the non-invasive level switch becomes the best solution. by installing sensor external at the tank wall(side), while the installation positions are not limited, just according to your requirements.
Application: measure water level in our Acetylene generator. without any port to insert sensors in the vessel.
Acetylene gas on top, water at the bottom.