Electronic Sensors, Inc. (ESI) provides Level Devil ® American-made tank monitors, for local or remote tank monitoring — including some of the industry’s most popular sensor controller units. We have systems for single-tank or multi-tank installations (and most of our multi-tank controllers are also available in lower-cost single-tank versions).
Local displays — either integral to the monitor or as an external accessory — provide immediate visibility at the tank site, with large liquid-crystal digits.
Remote monitoring is available 
via cellular, satellite, WiFi/RF, or Ethernet communications — reaching your cellphone, smartphone or computer from virtually anywhere (using solar, battery or AC power).
Local alarms and controls are also available. Relay boxes extend the functions possible for our monitor/controller units, allowing them to be programmed to control lights, horns, switches, pumps, relays and other devices.
Tank sensor options — to measure nearly every type of fluid — include pressure (hydrostatic, differential, or bubbler), mechanical/float, magnetic, ultrasonic and radar.
Accessories include cabling, connectors, mounting hardware, fittings and adapters for any tank or plumbing.
S
ERVICES include various options for remote tank monitoring, depending upon your choice of system and service plan, including:
- Multiple reporting methods:
- E-mail message;
- Text message to cell phone;
- Voice message to any phone’
- Internet Web page display, password-secured;
- Raw data stream direct to your computer system.
- Timed (scheduled) reporting (user-selectable from one-minute to one-month intervals).
- Pseudo Real-Time (PRT) reporting — triggered by any customer-selected event (specific level or rate-of-change reached).
- Alarms/Alerts/Notifications when specific user-selected levels are reached.
- Report-on-demand (“ping”).
- Continuous reporting.
- History reviewing.
- Graphs to provide vivid indications and quick assessments.
- Multi-tank data displays, reporting status of multiple tanks simultaneously, color-coded by condition.
- Tabular downloads in Excel spreadsheet, XML, or .csv (text) formats.