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Kreuger sentry
ACU Gauge


  • The ACU Gauge is a float type sensing device for 0"-60" deep tanks and accurate to 1/10" of an inch.
  • It has a 3.5 digit backlit optional integrated display. The unit runs on either a nine volt lithium battery, or it can run off of the remote unit's power source.
  • The display has a push button activation with a battery saving automatic shutoff.
  • can be ordered with or without integrated display
  • can be ordered with optional remote display
  • Unit is contained within a weather proof housing. It is semi waterproof (cannot be submerged), and is good from 30 to 140 degrees Fahrenheit.
  • Standard auxiliary output jack with high quality gold plated connections.
  • Ordering Instructions -Please specify the depth of your tank in inches. Standard sizes are Vertical tank (44" height) and Horizontal tank (27" height). Custom sizes up to 60" available.



Two optional remote displays are available for this gauge. The Fuel Minder III Digital Remote Display(below) or the Krueger Optional Display (at right):

Fuel Minder III Digital Remote Display

fuel minder III

  • Extemely accurate digital readout gives tank depth with accuracy to the nearest inch
  • Hardwired system is accurate and reliable
  • LED readout
  • includes everything you need for easy installation






Krueger Sentry ACU Gauge (shown with optional integrated display)

ACU Gauge



Krueger Optional Display

ACU remote display

  • The Krueger Remote Display is an optional add on that retains all of the same properties as the ACU Gauge itself.
  • 3.5 digit LED Display
  • Powered By 6 AA batteries, one 9volt lithium battery, or wall cube.
  • Battery life is 24 hours continuous/ 1year intermittent.
  • Push button activation, auto shutoff after 8 seconds.
  • Adjustable Hi/Lo liquid level alarm. Resetable even in alarm mode.
  • 0-5 Volt output adjustable/4-20 milliamp loop output for interface to process controller/computer.
  • Order what ever length cable you need.


purchasing information