Victron Energy GX Tank 140 (4-Channel Tank Level Input for GX Devices)

The Victron GX Tank 140 adds four tank-level inputs to a Victron GX system — so fuel, water, holding, and other tank levels show up right alongside your battery and solar data on the GX Touch, the VictronConnect app, and the VRM portal. It connects to a GX device (such as the Cerbo GX) over USB and is configured entirely from the GX menu.

Reads almost any tank sender

Each of the four channels accepts both 4–20 mA (current) and 0–10 V (voltage) senders — you can even mix types across the four inputs. The input range is configurable (for example to read a 0–5 V sender), and a configurable averaging filter (1–60 seconds) damps out the slosh of fluid moving in the tank so the reading stays steady. Built-in sensor-fault detection raises an alarm if a signal drifts out of its normal range.

Sensor power sorted out for you

• Channels 1 & 2 distribute power to the senders from an external supply (via the “Ext. Power” terminal), protected by a self-resetting 20 mA fuse.
• Channels 3 & 4 use an internal 24 V supply (powered from USB, isolated), also fused at 20 mA per channel — so those two channels need no external wiring at all.

Local and remote monitoring

Tank levels display locally on the GX Touch and feed the GX device's tank-pump (relay) control. On a boat, the GX can also push the levels onto the NMEA 2000 network so your chartplotter or MFD shows them. Through the VRM portal you can view levels from anywhere, set high/low alarms and notifications, and pull historical data to track consumption and refill cycles.

Need more than four tanks?

Add more GX Tank 140 units — the system scales cleanly for larger installations.

What's in the box

GX Tank 140 unit with a non-detachable 1.5 m USB cable, one 2-way pluggable terminal block (external power), and four 3-way pluggable terminal blocks (sensor connections). The unit mounts with screws through its slotted side flanges. Tank senders are not included — use any compatible 4–20 mA or 0–10 V resistive/active sender.

Why buy from Blue Marine

Blue Marine is an authorized Victron Energy dealer. Every GX Tank 140 ships brand-new with the full 5-year Victron warranty, free shipping, and local pickup available. Not sure your senders are compatible? Send us their spec and we'll confirm before you order.