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Electronic Fuel Tank Monitors

Increase Efficiency By Accurately Controlling Inventory

  • Mass technology measurement, the most accurate method
  • Proven 99.5% accuracy
  • Wireless sensors, easy to install, no hard-wiring necessary
  • UL certified, service the system without draining the tank
  • Inventory control,
  • Leak detection
  • Theft detection
  • Delivery confirmation



The most difficult tank to measure inventory in is the AST. This is because the tank is in the open air (not insulated by the earth), and during daylight hours is exposed to the heat of the sun on one side of the tank. This warms the tank and product in the tank on one side.

Warm fuel (like warm air) rises, and cool product sinks - due to thermal expansion and contraction. This constant convection means the product temperature is not homogeneous and the volume changes significantly from the day's high to the day's low temperatures.

Equating the stored product in your tank to money in the bank; isn't having an accurate accounting of your inventory essential? Especially when knowing to within .5% accuracy means you can comfortably use your inventory data to better utilize scheduling and resources.

Why we are better:
Almost all gauging utilizes 'measure the gross' technology, which starts with all of the inaccuracies inherent to that technology. And those gauges have an error factor normally between 3 and 7%. That's good for a general idea of where you product level is. But is it good enough?

FTI measures the net weight of the displaced volume of a buoyancy tube suspended from a load cell (or strain gauge). Starting with the weight and net volume at 60 F (15 C) this displacement is measured in pounds.

It's far better to start with a truly accurate net volume and adjust it for gross inventory volume and level than to start with an inaccurate number and think that it'll get better by adding variables and band-aid electronics.

Our technology is rated at 99.5% accuracy or better!