Hladinové sondy signalling of the medium having minimum density 0,70 g/cm3. The basic version, mounted from the top, is available with 92x92mm flange connector, head made from aluminium alloy and M20x1,5 cable gland with casing protection degree IP68. Other versions of mechanic or threaded flange connectors according to the ordering code. There is also a possibility of ordering the level swicth with connector according to the requirements, e. g. with flange acc. to DIN or ANSI standard. The level switch can also be ordered in version fully made from acidproof steel, with additional cover protecting the float, made from stainless steel, with additional cover protecting the float, as well as with certified cable of optional length. The level switch has DNV GL Marine approval.