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LPG Stationary Tank Monitor for Domestic and Industrial Tanks

The Levelcon Stationary Tank Monitor for domestic and industrial tanks is used for measuring LPG level in a tank, and displaying the data both locally and on your computer. It can be installed indoors or outdoors at a convenient location that can be up to 200 feet from the tank. A level sender is also included which is installed in the float gauge located on the tank. The LPG tank does not have to be emptied or purged to install the sender. Its’ universal design fits any gauge that has an R3D dial which allows you to check the LPG level at the tank.


  • Monitors up to 2 LPG Tank Levels directly at the tank, remotely up to 100 feet from the tank, or on your computer (up to 1000' with 4-20 mA option)
  • First channel sensor included (Analog output 0-5VDC )
  • State-of-the-art intelligent microprocessor based electronics
  • Large LCD readout indicating Level, Low Set Point and High Set Point for each channel
  • Hi/Lo alarm set points programmable using built-in pushbuttons
  • One Form “C” (NC-N-NP) contact available for each channel. Contact rating 120VAC @ 3 Amps
  • Analog Output for each channel, 0 to 5 VDC standard, 4-20 mA optional
  • RS232 Serial Interface for direct connection to PC/RTU or PLC
  • NEMA 4 enclosure suitable for outdoor use
  • Operated on 12 to 24 VDC power.
  • Includes 120 VAC wall transformer for AC operation, one LPG sensor and standard 2” Rochester Junior dial face with 4' cable length. (longer cable available - see order info)
  • Will work with any gauge that has an R3D dial installed
  • Easy installation, no special skills required

Sample screen shot showing two tank levels and high and low set points

screen shot

Do you need to run your wire a longer distance (more than 100 ft)? For longer distance runs (up to 1000 ft) we recommend the 4-20 mA output option. The 4-20 mA option is available for either 1 or 2 channels. Recommended for quality, reliable signals over longer distances. See ORDER INFO

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94442A with (2) 4-20 mA boards installed

Stationary Tank Monitor Console

stationary tank monitor

Tank Sender Junior Dial Face and 12VDC power Supply included

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Everything is included for installation to monitor one LPG tank. If needed, longer cable can be ordered separately and second tank R3D cable can be ordered separately as well - see ORDER INFO

Tank Monitor indicates LPG level and corresponding Low and High Set points for up to 2 individual tanks. Top Line indicates parameters for Tank 1 and second line for Tank 2.

monitor detail




User Manual

STM94442A Configured for 4-20mA Signal Notes

Vertical Tank Notes

Schematic Diagram of 94442A with Optional Zener Diode - Contact Us



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