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Home > Applications > Liquids Level Measurement > Wastewater & other liquids > SOBA

2, avenue des Bosquets
Z.A. de l'Observatoire
78180 Montigny le Bretonneux

  :  +33(0)1 6137 3560
  :  +33(0)1 6137 3569
SOBA liquids level regulator


The SOBA is a level regulator equipped with an external adjustable resin ballast. As the liquid level reaches the regulator, the mechanical switch inside will tilt, thus closing or opening a circuit connected to an electrical panel. Thanks to its +/-25º switching angle, the SOBA level regulator ensures a very precise level measurement.


  • No maintenance needed, thanks to its biconical shape that avoids any clogging. 
  • Easy to install, easy to use
  • Ecological float switch (no mercury, no lead)



  • Clear, clean liquids, rain water
  • Wastewater, sewage water, charged liquids 
  • Slightly aggressive liquids (oils, mud, paint, etc.) and more aggressive ilquids if equipped with a HR HY cable
  • Level control of multiple pumps 
  • Emptying / Filling function
  • Overflow or dry-running protection
  • High / low level alarm


 SOBA technical data sheet  (PDF 498Ko)
 SOBA wiring diagram  (PDF 1174Ko)


Operation mode Omnidirectionnal
Allowed fluid density 0,70 à 1,15
Maximum pressure 3.5 bars
Allowed temperature 85°C
Protection index IP 68
Power supply 12, 24, 48  VAC/VDC and 250 VAC  50/60 Hz
Cut-out power 16 (6) A (16 A résistive – 6 A inductive)
Housing material

Copolymer polypropylene

Cable 3 cond. 1 mm² Neoprene or HRHY
Weight without cable 200 g
Cable weight

Neoprene 115 g/m or HRHY 110 g/m

Ballast Loaded resin 250 g
Standard cable lenght (serie) 5, 6, 10,13, 15, 20 et 30 m
  • It is highly recommended to use cable hangers with our float level switches.
  • This model is also available in a smaller version for limited space applications. See SOBA SMALL.
  • The SOBA level regulator is not suitable for agitated liquids. Please choose our float switch models: BIP STOP, AT 120, or ATS 165.
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