Associated to Casagrande Cell or open tube piezometer, are supplied Water level meter indicator OG10, OG10M and OG15. They reveal the level of water ascent throught the filters or piezometric’s pipe verifing the the hydraulic equilibrium corresponding to the piezometric height.

The deepness measurement is made up dropping the probe inside the piezometric casing till the visual-acustic alert. Once reveled the presence of water it’ll be read on the reel’s silk-screened notches (centrimetrated or millimetrated in case of OG10M) the deepness of the probe.

The device is portable so it doesn’t need any installation letting the user a rapid measurement of many different tebes at several distance. OG15 variant is equipped with a thermometer. Depending on the conducibility of the water the instrument is settable with its own sound calibration trimmer. Water level indicator works with a 9V battery cangable by the operator.