Using the ToF technology (Time-of-flight) These multi-level sensors can provide accurate level measurements within a range of up to 60 meters. The system would include a central hub unit for multi-sensor connectivity for single or multiple silo level monitoring. This hub performs multiple functions. It provides power to each connected sensor. It triggers these for distance measurements in a sequence (RS485). It performs real-time computation of the remaining level. And it outputs final data via Ethernet interface. This results in a safe inventory management, also avoiding content contamination inside silos.