Dial Instruments Pte Ltd
Level Measurement Solutions for Petrolchemical, Pharmaceutical,
Marine & General Industries
Subpage :: Masthead
Air bubbler system LA



Level measurement of sludge, highly viscous liquids and liquids with suspended solids.


  • Having no moving parts, the sensor offers stable measurement even with sticky liquids or liquids with suspended solids.
  • Long service life even with corrosive liquids due to air preventing corrosive gases from penetrating into the controller.
  • Sensor requires no electricity, so can be used in hazardous areas with the controller installed in a safe area.

Principle of Operation

Controller sends air to the sensor placed in the tank, and measures the back pressure, continuously indicating a level and giving a 4 to 20mA DC output.