In addition to the industries listed on our home page, Electronic Sensors, Inc. (ESI) serves various other industries, as well, and a wider array of fluids. Examples include food processing and beverages, water and wastewater, granular solids, and propane. And ESI offers systems that monitor more than tank levels. We have systems for almost any monitoring need.

9032 reporter tank monitorESI been around for over 35 years, and has designed tank-gauging monitors and displays, alarm systems, fluid-data processing and presentation systems, and customized solutions. We enjoy listening to our customers, and offering products and services that will provide a solution for the customer’s point-of-pain. ESI designs and develops sensor solutions that are applicable in a variety of different market situations. Give us a try…many companies have and are happy with our effective solutions that last.

ESI’s modular designs work with many applications and environments—allowing our customers to start small and finish big. Our controllers can monitor from 1 to 99 sensors. No need to try and project your finished solution, we grow our systems with you as you grow!

Communication Options:

  • Cellular coverage from all major providers
  • Satellite for areas beyond earthly resources
  • Wireless local area network (WiFi/RF)
  • Ethernet via direct connection to a modem
  • Land line for those places not yet modernized


  • Solar power recharges internal battery for around-the-clock operation
  • AC power directly to power supply
  • Batteries run on Lithium Ion technology for once-a-day reporting and an occasional alarm report.


  • Static Pressure Sensors– take the pressure readings and calculates a volume and height based against a set pressure value.
  • Differential Pressure Sensors– compares the pressure difference between two values to calculate volume and height. In this case the two values are the pressure at the top of the tank versus the pressure at the bottom of the tank.
  • Ultrasonic Sensors– uses high frequency sound waves to calculate the distance from the sensor to the liquid. This gives the height and volume of the liquid in the tank.
  • Switch Sensors– uses a float to trigger a switch that sends an alert for either the float being lifted to a certain point or lowered to a certain point.
  • Temperature, pressure, levels, cameras, intruder alarm systems and other monitoring points that you may need.
  • Call us for solutions!  (800) 886-2511

Why Level Devil?