Tank Monitors & Controllers

9023-tank-teller-monitorElectronic 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).

Remote monitoring is available via cellular, landline, satellite, Ethernet, or serial/RS-232 communications — reaching your cellphone, smartphone or computer from virtually anywhere (using solar, battery or AC power). Local displays and alarms are also available, and relay boxes extend the functions possible for our monitor/controller units, allowing them to be programmed to control switches, pumps, relays and other devices.  Select the units you want from our current line of monitor/controller units.
(click on the model name or number for details).

ESI / Level Devil ® Tank Monitors / Controllers
Model Number 9035A 9225 9032A 9023A 9175 9230 9172
Model Name Tank Monitor II Lil’ Devil II Tank Reporter II Tank Teller II The Stack Short Stack Penta Comm
1 5 6 99 99 2 5
Display YES YES YES YES Opt. Opt.
Alarm (Relay) Opt. Opt. Opt. Opt. Opt.
Cellular YES Opt. YES
Landline Opt. Opt. Opt. Opt.
Satellite Opt. Opt. Opt. YES
WiFi / Local RF Opt. Opt. Opt. Opt.
Ethernet Opt. Opt. Opt. Opt.
Serial Wire
/ RS-232
Opt. Opt. Opt. Opt.
Battery Opt. YES YES *
Solar Opt. Opt. Opt. *
AC YES YES YES YES Opt. Opt. Opt. *

* For the 9172 PentaComm: in addition to the standard battery,
solar or AC power is required.

Why Level Devil?