One-float level switch with non inspect-able body for external side mounting with one or two switching units. For pressure up to 50 Bar, for temperatures up to 400˚C max. and for fluids with a specific gravity of 0,58 kg/dm3 min. for the 62 model; 0.7 kg/dm3 for the 64 and 66 models; 0.65 kg/dm3 for the 62D model and 0.8 kg/dm3 for the 64D and 66D models. Minimum differential of each switch with SP.GR. of 1 kg/dm3, 30 mm. Set point accuracy:± 5 mm.