The Krueger Sentry Type "OF" Overfill Gauge is a reliable, straight action type gauge used to monitor one small section of your tank. This pop up liquid level detector can be made from 6" long to 40" long. This allows you to decide what level in your tank that you want the gauge to begin to pop up. It is not designed to measure the level in your tank, instead it just gives you a visual alarm at the depth you specify.
- Patented calibration assembly withstands pressure of 70 lbs PSI
- Double plastic dome is almost indestructible
- For use in 55, 30, or 15 gallon barrels
- Gauge reads in gallons" "liters and volume percentage
- All internal tank" parts available in stainless steel
- Repair parts available