The NIVA level controller M2 is the ideal solution to control liquids with very limited switching space. For example in:
Due to its smaller volume and its lesser buoyancy force, the „small“ level controller M2 is only suitable for use in media without large amounts of solid matter and especially suitable for use in small tanks with limited space.
Liquids without solids. Small diameters. For cable weights to stabilize and adjust the switching point.
Additional weights and other accessories on page 52.