The Victron Energy GlobalLink 520 is a cellular monitoring gateway that connects your remote solar system to VRM, Victron's free online Remote Management portal, so you can check battery state of charge, PV harvest, power consumption, and temperatures from anywhere in the world.

The 520 uses 4G LTE-M (LTE Cat-M1), a low-power cellular standard built to draw very little energy and reach existing 4G towers with wide, low-band coverage, ideal for fixed remote installations like cabins, pump stations, and telemetry sites where power budget matters and data needs are modest. Because LTE-M supports roaming and handovers, it also works in moving applications like campervans where LTE-M service is available.

Connect up to two hardwired VE.Direct devices, such as a BMV battery monitor and an MPPT solar charge controller, plus up to 10 additional Victron smart products over Bluetooth. Two digital inputs (which double as pulse counters) and a remote-controllable relay complete this monitor-and-control package.

Setup is quick over Bluetooth using the VictronConnect app, and the unit is wall mountable. A prepaid 1nce SIM is included with 5 years of connectivity, no separate data plan or SIM card to buy. An internal antenna is designed for worldwide reception, with an SMA connector for an optional external antenna when you need better signal or a vehicle install.

• 4G LTE-M (LTE Cat-M1) cellular — low power, wide low-band coverage; 17 bands, 699–2690 MHz (worldwide support)
• Prepaid 1nce SIM included with 5 years of connectivity — no monthly fees or subscriptions
• Free VRM online monitoring: battery SOC, PV/grid/generator power, consumption, temperatures, alerts, and diagnostics
• 2 isolated VE.Direct ports for hardwired devices (e.g., BMV monitor, MPPT controller)
• Bluetooth Instant Readout for up to 10 additional Victron smart devices, plus RuuviTag sensor support
• 2 digital inputs (also function as pulse counters)
• 1 relay (NO/NC; 2 A DC up to 30 VDC, 0.5 A at 125 VAC)
• Wide 8–70 VDC supply; wall-mountable
• Internal antenna with SMA connector for optional external LTE-M antenna
• Supports custom SIM cards
• Operating temperature: –20 to +50 °C
• Quick Bluetooth setup via the VictronConnect app

Victron Energy GlobalLink 520

NOTE: The status of the GlobalLink 520 with firmware v2.05 or newer can be monitored live with a Bluetooth enabled device (such as a mobile phone or tablet) using the VictronConnect app.

We believe that having insight into your installation is a key factor in maintaining and operating your off-grid energy solutions. Off-grid should not mean off-line, so we have created the GlobalLink 520. This device will bring 4G LTE-M connectivity to all VE.Direct enabled devices without any monthly fees or subscriptions, for the first five years.

GlobalLink 520 comes with two VE.Direct ports which allows you to connect up to two VE.Direct devices such as a BMV Battery Monitor and/or a MPPT Solar Charge Controller directly to VRM. With two digital inputs that also act as pulse counters and a remote controllable relay, it's a perfect solution to monitor and control your installation.

The GlobalLink 520 comes with a built-in antenna that is designed to work all around the globe. However if you require better reception or want to install your module in a utility van for example, it is also possible to mount an external antenna.

LTE-M is the abbreviation for LTE Cat-M1 or Long Term Evolution (4G), category M1. This cellular technology is designed to connect Internet of Things devices to existing 4G towers while using low energy. LTE-M does support handovers and roaming so it is possible to use this device in a moving vehicle like a campervan. Check https://1nce.com/en/coverage/ to see if LTE-M is officially confirmed to be available in your area. Coverage is increasing every week as local providers roll out support. Includes 5 years of connectivity, so there is no need to worry about purchasing a separate data bundle and SIM-card.