Last Updated: 07/09/2018

Gems Sensor & Control DF Series Liquid Level Control

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Dual function Series DF models are designed to control two independent level functions: one single-level control operation and one differential-level operation. Optional Power Outage feature resets after nuisance outages. Optional Reset Button is used when the device has been deactivated due to low-water condition. Reset is activated only after water has returned to normal level. This control is ideal in applications on boilers, food service equipment, and chemical delivery systems.


  • Dual Function
  • Single-Level Service
  • Differential Service
  • Feedwater Control / Low-Water Cutoff
  • High Level / Low Level
  • Pump Down / High Level