Last Updated: 07/09/2018

Gems Sensor & Control Series 27 Conductivity Based Liquid Level Control

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Series 27 intrinsically safe controls have SPDT output contacts and are UL approved for use in Class I, Groups A, B, C & D; Class II, Groups E, F & G; and Class III hazardous locations. Control sensitivity is factory-set. Series 27 is UL Pilot Duty rated.  CSA certified for Class 1, Groups A, B, C and D; Class II, Groups E, F and G; Class III.


  • Hazardous Atmospheres 
  • Pumps 
  • Waste Treatment 
  • Alarms 
  • Sewage 
  • CP Industry