GX Tank 140The GX Tank 140 takes readings from up to four tank level sensors. It is an accessory for Victron's range of GX system monitoring products, of which the Cerbo GX is the most commonly used model. Tank levels can be read out locally in the system, see screenshot, as well remotely through our VRM Portal. The GX Tank 140 is compatible with current senders (4 to 20 mA) as well as voltage senders (0 to 10 V). The connection to the GX Device is via USB,