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Victron 4-Channel GX Tank 140 Level Sensor Interface

4-Channel USB Interface for 4-20mA & 0-10V Sensors with NMEA 2000


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Top-down view of blue Victron GX Tank 140 adapter showing 4-channel wiring diagram and USB connection cable

Victron 4-Channel GX Tank 140 Level Sensor Interface

DESCRIPTION

Victron GX Tank 140: 4-Channel Tank Level Sensor Interface for Cerbo GX and GX Devices

Centralised Tank Monitoring for Off-Grid, Marine, and RV Systems

The Victron GX Tank 140 (BPP920140100) is a dedicated USB accessory that enables precise, real-time monitoring of up to four tank levels directly through your Victron GX device, such as the Cerbo GX. Designed for seamless integration with the Victron Remote Management (VRM) portal and local display, it consolidates critical fluid data—fresh water, fuel, waste, and more—into a single, intuitive interface. This eliminates guesswork and manual checks, providing reliable insight for off-grid energy systems, marine vessels, and recreational vehicles.

Unlike generic tank sensor adapters, the GX Tank 140 is engineered for robust electrical isolation and configurable signal processing, reducing the risk of ground loops and false readings. It supports both 4 to 20 mA current senders and 0 to 10 V voltage senders, offering flexibility for a wide range of existing tank sensors. With built-in 24 VDC power on two channels and fused external power support on the others, installation is straightforward, even in complex setups.

Key Features

  • Monitors up to four tanks simultaneously via USB connection to any Victron GX device
  • Compatible with 4 to 20 mA and 0 to 10 V sensors, including mixed configurations
  • Integrated 24 VDC supply on channels 3 and 4 powers sensors directly, simplifying wiring
  • Configurable input ranges allow use of partial-scale sensors, such as 0 to 5 V
  • Adjustable averaging filter (1 to 60 seconds) delivers stable, damped readings
  • Automatic fault detection triggers alarms for out-of-range values or wiring issues
  • NMEA 2000 output via GX device enables tank level display on marine MFDs
  • USB-powered with 1.5 m cable—no extra power supply needed for the unit itself

Precision Monitoring with Advanced Signal Handling

The GX Tank 140 addresses common challenges in tank level sensing, such as erratic readings from sloshing fluids or sensor noise. Its configurable damping filter smooths data over a user-defined period, ensuring the displayed level reflects actual volume rather than transient fluctuations. The device also validates sensor signals continuously; if a sensor fails or wiring becomes compromised, an immediate alarm notifies you via the GX system, helping prevent undetected overflows or dry runs.

For marine applications, the GX Tank 140 extends its utility by relaying tank data onto the NMEA 2000 network. This allows multifunction displays (MFDs) and other onboard instruments to access fuel, water, and waste levels without additional gateways, streamlining your helm’s information layout.

Flexible Configuration for Diverse Tank Types

Supporting six fluid types—fuel, fresh water, waste water, live well, oil, and black water—the GX Tank 140 adapts to virtually any liquid storage monitoring need. Volume can be displayed in litres, cubic metres, imperial gallons, or US gallons. For irregularly shaped tanks, up to ten custom shape points can be defined, enabling accurate volume calculation even in non-linear containers. This level of customisation is rarely found in standard sensor interfaces, making the GX Tank 140 a valuable tool for precise resource management.

Simplified Installation and Reliable Operation

Installation is streamlined: connect the GX Tank 140 to your Cerbo GX or other GX device via the included USB cable, and it powers up immediately—no external power brick required. Channels 3 and 4 provide isolated 24 VDC to drive compatible sensors, while channels 1 and 2 accept externally powered sensors through a dedicated terminal with self-resetting fuses (20 mA). All four channels share a common ground, so careful planning of sensor wiring is recommended to avoid potential interaction, though the USB interface remains electrically isolated from the sensor side for system safety.

The compact, rugged enclosure features integrated mounting flanges for secure installation in equipment bays or bulkheads. Side-entry terminal blocks keep wiring neat and accessible, while the reinforced cable gland protects the USB connection from strain and vibration.

Enhance Your Energy Ecosystem with Integrated Tank Data

By adding tank level monitoring to your Victron GX system, you gain a holistic view of your off-grid or mobile resource status. Pair the GX Tank 140 with a Cerbo GX and VRM portal to track not only battery state, solar yield, and inverter loads, but also water and fuel reserves—all from a single dashboard. This integration supports smarter decision-making, whether you’re managing a remote homestead, a cruising yacht, or a caravan expedition.

Ready to eliminate manual tank checks and gain real-time visibility? Add the Victron GX Tank 140 to your monitoring setup today and experience the confidence of knowing your fluid levels at a glance, wherever you are.

SPECIFICATIONS

Specifications

Channels4
Sensor Input Types4 to 20 mA or 0 to 10 V tank level sensors, including a combination of both
Connection To GX DeviceUSB interface
Unit Power SupplySelf powered from USB interface
Channels 1 And 2 Sensor PowerExternal power supply via the Ext. Power connector
Channels 1 And 2 FuseSelf-resetting fuse (20 mA)
Channels 3 And 4 Sensor PowerInternal 24 VDC power supply, isolated from USB
Channels 3 And 4 Current LimitMaximum 20 mA per channel
Configurable Input RangeFor example to connect a 0 to 5 V sensor
Averaging Filter1 to 60 seconds
USB Cable Length1.5 m
Electrical IsolationUSB cable electrically isolated from the sensors
GND ConnectionsAll four channels are internally connected and are not individually isolated from each other
Supported Fluid TypesFuel, Fresh Water, Waste Water, Live Well, Oil and Black Water
Supported Volume UnitsLitre, Cubic meter, Imperial gallon and U.S. gallon
Custom Shape PositionsUp to 10
Tank Pump ControlFull integration with a GX device for tank pump (relay) control
MonitoringGX device screen, Remote Console on LAN and VRM Portal

SKU: VIC-BPP920140100
Barcode: 8719076053781
Model #: BPP920140100
MPN: BPP920140100

WARRANTY

Victron Energy Limited Warranty Policy

Direct Customers

Victron Energy provides the following warranty to any direct customer (OEM, distributor or dealer) in relation to any products that Victron Energy has directly sold to the direct customer. This warranty is not an end-user warranty between Victron Energy and an end-user, and end-users shall not have any rights or remedies under this limited warranty towards Victron Energy directly. The direct customer shall, in turn, ensure that the end-user is provided with a warranty identical to this warranty, subject to applicable local mandatory law.

End-Users

Victron Energy may also provide a warranty directly to end-users, in which case the below warranty conditions equally apply to such warranty. In that case, end-users shall claim their warranty at their place of purchase or through the original direct customer of Victron, which can be found through the support section on Victron’s website. Hence, the direct customer shall on behalf of Victron Energy deal with any warranty claims made under any warranty that Victron Energy may provide directly to end-users. This support section on Victron’s website will provide further guidance on the procedure for end-users to make a claim under this limited warranty.

If the end-user is a consumer – a natural person who is acting for purposes which are outside that person's trade, business, craft or profession – the following applies. The rights and remedies granted to the consumer under this limited warranty are without prejudice to the consumer’s statutory rights. Furthermore, the consumer is entitled by law to remedies from the seller free of charge in the event of a lack of conformity of the goods (such as repair, replacement, price reduction or rescission), which remedies are not affected by this limited warranty.

Warranty

Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the original end-user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead-acid batteries: 2 years from date of purchase by the original end-user, with a maximum of 30 months from the Victron Energy invoice date, Lithium batteries: 3 years from date of purchase by the original end-user, with a maximum of 42 months from the Victron Energy invoice date. In addition to this, proof of correct battery usage is required when making a battery warranty claim.

For a 10% surcharge on the current net price for products that came with a 5-year warranty, an additional 5 years of warranty can be purchased by Victron’s direct customers, bringing the total warranty to 10 years. Warranty extensions need to be applied for ultimately one year before the expiration of the original term. Victron may ask proof that the product was still functional at the time of purchase of the extended warranty.

During the warranty period, Victron Energy will, at its discretion, repair, replace or (partly) credit the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation, and re‐installation.

This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like:

  • Reversed battery polarity.
  • Inadequate connection.
  • Mechanical shock or deformation.
  • Contact with liquid or oxidation by condensation.
  • Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation, etc.).
  • Breakage or damage due to lightning.
  • Connection terminals and screws destroyed or other damages, like overheating, due to insufficient tightening.
  • For any electronic breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state of the internal control diode and/or the input/output X and Y capacitors determine the warranty.

This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone other than Victron Energy or one of its authorized Repair Centres. In order to qualify for the warranty, the product must not be disassembled or modified.

This warranty and our warranty obligations thereunder (repair, replacement or credit) are the direct customer’s and, if applicable, the end-user’s sole rights and remedies and our sole obligations with respect to any defective and/or non-conforming product or breach of warranty and is subject to and without prejudice to the limitations of liability in this warranty.

Victron Energy shall not be liable for damages, whether direct, incidental, special, or consequential, even caused by negligence or fault.

As a product requires service, it must be brought back to the place of purchase. In case no contact can be made with the merchant, or if he is either unable or not allowed to provide service, direct contact should be made with Victron Energy through the support section on Victron’s website.

In case Victron Energy replaces a product, it will own the replaced product. Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers when performing warranty repairs or building replacement products.

If Victron Energy repairs or replaces a part of a product, its warranty term is not extended: the warranty will apply for the remaining term of the original warranty term. For example, if Victron Energy replaces a product with a 5-year warranty after 3 years, the warranty of this product will apply for another 2 years, with a minimum of 6 months.

All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent or special damages, even if having been advised of the probability of such damages.

The foregoing limited warranty provided by Victron Energy is in lieu of any other warranties, express or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, of any kind whatsoever including, without limitation, warranties of merchantability or fitness for a particular purpose, with respect to any product. The above is without prejudice to the arrangement for consumers detailed above.

Life Support Policy

As a general policy, Victron Energy does not recommend the use of any of its products in life support applications where failure or malfunction of Victron Energy's product can be reasonably expected to cause the failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the liability of Victron Energy is adequately protected under the circumstances.

Warranty on repairs for products outside their warranty period

The warranty period on products that are outside their warranty period and have been repaired by Victron Energy or one of the Victron Energy Repair centres is six (6) months from delivery. The same applies to spare parts and circuit boards that have been supplied or repaired by Victron Energy.

Transport

It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.

Severability

If a part of the terms and conditions of this warranty is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions of this warranty.

Applicable law

This warranty is exclusively governed by the laws of the Netherlands, to the exclusion of the UN Convention on Contracts for the International Sale of Goods.

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