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Waterline Controls

Water Level Controls & Sensors

WLC5000 – Fill W/High and Low Alarm

Complete Kit Includes:

  • Sensor With 50 ft. Sensor Wire*
  • Controller
  • Mounting Assembly


  • Fill w/ High Alarm
  • 3-Contact point system
  • 8-wire Dry contacts to BMS for measuring:
    • Fill “ON” time
    • Low Water Alarm
    • High Water Alarm
    • Fault conditions
  • Operates any 110VAC valve & 110VAC audible alarm (Not supplied in this kit)


A Controller with fill, high and low alarms is the most popular system we offer. Cooling Tower mechanical contractors like it so much because it provides the operator with the most information about the water levels in the cooling towers, or any other environment they use it in, and it connects to their BMS. The BMS connections allow the operator to know the fill cycles, if it goes into either high or low alarm mode, or if it happens to lose power.


There are three outputs which:

  1. Close a set of dry contacts for a BMS
  2. Operate a relay rated at 30AMPS for 250VAC
  3. Turn on an LED to indicate this sensor has tripped.

The Fill dry contacts can be used as a comparative to develop a baseline benchmark of water usage for the system.

*Custom Sensors lengths available upon request.

If you are a Reseller, Sales Organization, Distributor, Contractor or an OEM we want to talk with you to determine an SPA price program for your organization so please call us at 1(888) 905-1892 or contact us now.