IP65 die-cast aluminium enclosure with Nitrile O-ring sealStainless steel, TIG-welded stemVolt-free reed switches and resistors are mounted in the stem to provide varying resistance as the float rises and falls (converted into 4 to 20mA stepped output)Minimum high level: 70mm10mm stepped accuracy1.5 x M20 conduit entrySuitable for use within petrochemical, storage and process control applications