applications > oil water interface measurement, supernatant/subnatant level measurement

A portable instrument similar to that of a water level indicator but characterised by an optical probe that signals the presence of a pollutant (usually a hydrocarbon) that usually floats on the surface of the groundwater or is deposited below it.

When the probe is lowered into the well, an IR sensor is used to determine the presence of the product (usually a hydrocarbon) at the depth indicated on the special millimetric cable, while a conductivity sensor identifies the underlying water level. The passage between the two means is indicated by transition from a continuous tone ("product" or oil) to a pulsing tone (water).


Available lengths: 30m, 50m, 100m, 150m, 200m, 300m, 400m, 500m, 600m

Flat polyethylene cable with two non-deformable twisted steel conductors (less than 0.002mm on 30m, tensile strength 134.7kg), with Kynar coating (resistant to most solvents and easily decontaminated)

Graduation every millimeter

Accuracy 0.008%

Probe: : diameter 19 mm, stainless steel material 

Signal: acoustic and visual signal to indicate the level reached 

Sensitivity adjustment: accessible from the outside (water) or inside (product)

Cable reel with stop

Reel and frame in painted iron

Power supply: with 9V battery (replaceable from the outside)