Series 27 Conductivity Based Liquid Level Control

Warrick 27 Series Intrinsically Safe
  • Solid State Reliability 
  • Up to 100K Ohm/cm Sensitivity 
  • Internal Surge Suppression 
  • Single Level or Differential Service 

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. 


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