Level gauges or indicators that will allow you to view the level of fuel or other fluids in your tank. Indicators with display or with signal shipment to a software "cloud" or installed on your PC.
With the Tank Modem Plus you can send the GESPASA level readings to the DieselPlus "cloud" software
You should know that:
By installing a level gauge you will avoid running out of lubricant and you will have a level history that will help you better organize your logistics and purchases.