Silo Inventory

Scale-Tron SiloWeigh IIoT

The new version of SiloWeigh.Net, SiloWeigh IIoT, is a system for Silo, tank and feed bin inventory with Internet access. Better than silo level measurement, SiloWeigh measures the actual weight of the vessel and contents. Consequently, it is a true picture of the amount on hand.  Most importantly, it costs less than a set of high-end level sensors. You can use it for up to 32 vessels per location, where both local and /or Internet-based remote access is required.  You can view it on any web browser, including smartphones. As a result, you can reorder material when it is necessary.


  • Never run out of material again – Visual warning at Reorder and Low levels, plus audible warning if you need it. Consequently, it prevents loss of production and missed deliveries.
  • Eliminate the risk of overfilling – In consequence, blown filters and the ensuing environmental hazards are a thing of the past.
  • Identify and stop delivery shortages – Ability to check every delivery, even weeks ago, against the delivery ticket.  As a result, you are in command of the situation.
  • SiloWeigh’s L-Strain sensors are temperature compensated.  Typical accuracy ±1 to 2% of full scale. But for skirted silos – expect ±5% of full scale.
  • All-weather. Sensors, wiring and junction boxes meet NEMA-4, IP66.
  • No moving parts for long life and reliability.
  • History trend graphs for any silo/tank/vessel in the company.
  • In-plant hard wired programmable alarms and Email alerts.
  • Weather filter eliminates the large errors present in competitive systems. The result is a huge increase in accuracy.
  • Single cable or digital radio gathers data from storage vessels.
  • The only vessel inventory system (along with Siloweigh II Pro) that handles unequal divided silos and stacked silos.
  • Connect all 4 sensors separately.  As a result, the diagnostic display pinpoints a bad sensor and bypasses it until a replacement can be fitted.
SiloWeigh.Net silo level measurement and inventory system is an Internet-based silo weighing system
SiloWeigh IIoT Silo Inventory System (upgraded SiloWeigh.Net)

It is accurate to 1 to 2%.  Very nice system, works well.” says Sam Santos of ABC Group (injection molded parts). August 2019

This plant is the only one across Canada that has never run out of material or had a silo spill since SiloWeigh.Net was installed in 2015” says Barry Metzner, manager, Lafarge-Holcim, Greater Vancouver, BC, Canada area, July 2018

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Scale-Tron SiloWeigh II Pro

SiloWeigh II Pro uses a touch screen for display, with capacity of up to 6 vessels. In comparison, SiloWeigh.Net has capacity for 32 vessels. Similarly, it has the same powerful weather filter and uses the same sensors, digital junction boxes. In addition, it uses a single cable or radio connection to the display unit. On the other hand, it does not have Internet access or display.


  • Never run out of material again and eliminate the risk of overfilling – Same visual display and alarms as SiloWeigh.Net.
  • Identify and stop delivery shortages – Ability to check every delivery, in the same vein as SiloWeigh.Net.
  • Better than silo level measurement.
  • Mount the legs on Load Cells for higher accuracy (0.1%).
  • History trend graphs for all silo/tank/vessels.
  • Hard wired programmable alarms.
  • Combine solids silos and liquid tanks/vessels by use of pressure or liquid level sensors.
  • Handles unequal divided silos and stacked silos.

No complaints at this point.  The system is working great and has helped us identify some significant gaps between what we should be receiving and what we actually did receive”  says Chris Allensworth, Nestle, Jonesboro, NC. Nov 2018

SiloWeigh II Pro silo level measurement and inventory system handles up to 6 silos
SiloWeigh II Pro silo inventory system handles up to 6 silos

Scale-Tron SiloWeigh Basic

Perfect for low cost vessel and silo weight display, without need for a weather filter. Designed for use on silos and bins where a very basic silo weight display is adequate. Because SiloWeigh Basic uses L-Strain or Silex sensors, its simple weight indicator shows the current weight of the vessel contents. Because of this, it does not have all the extra features.


  • Large, easy to read 0.6 inch green LED display.
  • Serial RS232 bidirectional communication.
  • Mount the legs on Load Cells for higher accuracy (0.1%).
  • Powers four L-Strain sensors or load cells.  Because of the load cell input, it is not applicable to level or liquid sensors.
  • Uses the same sensor kits as SiloWeigh II Pro and

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SiloWeigh Basic weight indicator does not have the other models' weather filter
SiloWeigh Basic weight indicator
SiloWeigh L-Strain sensor
SiloWeigh L-Strain sensor