Knight Series® OWS Alarm

The Knight Series® OWS is a liquid monitoring alarm system that will alert when oil is sensed on water. The sensor will provide an accurate capacitive measurement of water in tanks where oil is not normally present. In the event that oil is separated to the water surface at the sensor’s fixed location, the alarm system will notify that there is an accumulation of oil.



  • Indoor/Outdoor NEMA 4X rated enclosure: Heavy duty polycarbonate enclosure with stainless steel lockable latches
  • Includes Oil Water Separator Sensor with 25’ oil resistant cord
  • Alarm visible indicators: Red beacon alarm light, alarm test and silence buttons
  • Alarm horn sounds at 85 decibels at 10 feet
  • LED 22.5mm indicators: Low-level alert and power on
  • Includes auxiliary contacts to communicate with Oil Separator and remote devices
  • 120VAC, 10’ power cord
  • Panel and controls: UL listed for the United States and Canada


  • Oil water separators
  • Industrial storage tanks
  • Sumps
  • Stormwater treatment
  • Condensate tanks
Get in Touch: 888.733.9283