VMG’s Auto Reserve Fill Smart Manifold (ARFSM) Patented technology equalizes pressure between cylinders so you only ever need to change the primary side. The two-stage pressure control allows users to receive constant pressure and flow, eliminating the need for in-shift gas change outs and minimizes lost product or downtime. The ARFSM is equipped with the new Long Range (LoRa) VMG telemetry/remote monitoring system. This new system uses stronger RF that allows the user and gas supplier to better monitor gas supply and gas systems. Users can access the current level, detect leaks, and view overall usage on a desktop or smartphone.