For example, it can keep track of battery levels in a solar power system, ensure devices receive the right amount of electricity, and even alert you if something goes wrong, much like a warning light in a car. In simple terms, it’s a tool that makes managing electronics easier and more efficient.

Victron Energy GlobalLink 520 - 4G LTE-M VE.Direct Connectivity

PROS:

• It allows you to connect other Victron equipment, such as your Battery Monitor (BMV), SmartShunt, Solar Charger, Phoenix Smart IP43 Charger or Phoenix Inverter to the Victron Remote Management (VRM) portal via VE.Direct or Instant readout via Bluetooth.
• Smart device and VE.Direct support
• Connect up to 10 Victron smart products using BLE
• Two hard wired VE.Direct devices.
• The GlobalLink 520 has an internal antenna and an SMA connector for an optional external antenna (switch on the top of the device determines which antenna is used).
• VRM-monitoring: Monitor battery state of charge, power consumption, power harvest from PV, generator and grid or check temperature measurements. Follow up on alerts and perform diagnostics checks.
• RuuviTag an dRuuviTag Pro sensors are supported: These sensors connect via BLE and are easy to setup via VictronConnect. All the data, like temperature, humidity and atmospheric pressure will be directly available in VRM.
• Support for custom SIM cards.
• Simple mounting and configuration: The GlobalLink 520 is wall mountable.
• The Bluetooth feature enables a quick connection and easy configuration via our VictronConnect app.
• The VRM portal is available to use free of charge to view the status of your installation from anywhere in the world using your desktop or mobile device.
• The GlobalLink 520 can automatically check and update its firmware.
• The first five years of cellular connectivity are included in the purchase price. The device comes pre-configured and is ready to use right out of the box. You do not need to change any settings.

CONS:

• VE.Direct cables not included.
  
• GlobalLink 520 is not rated for outdoor use.
• Note that even though the Victron Energy Peak Power Pack batteries have a VE.Direct port, the GlobalLink 520 is not compatible to them..
• Please also note that the VE.Bus Smart Dongle (and therefore a VE.Bus inverter/charger) cannot be connected to the GlobalLink
  520 via Bluetooth.
• Not all Android devices can connect to the GlobalLink 520. An example is the HUAWEI Y6 2019 and there may be other Android phones that are also incompatible.
  Unfortunately, if you are using an incompatible Android phone with the GlobalLink 520, you have no choice but to use another compatible mobile device.

PLEASE CONSIDER:

• Make sure you have LTE-M coverage in your country before purchasing this device: https://1nce.com/en-eu/1nce-connect/our-coverage. However, this list does not show the operators per country nor the exact coverage of LTE-M per operator.
• We created a list from existing VRM data showing which operators have more than one GlobalLink 520 active on their network and added a link to the coverage map: https://community.victronenergy.com/articles/119936/globallink-520-lte-m-coverage.html.
• Do not set the switch to "external" if there is no external antenna connected, as this can permanently damage your device.
• The GlobalLink measures the voltage on its own power connector. If none of the connected VE.Direct or Smart devices is able to measure voltage, this value is used instead in VRM.
  Note that this measurement is not very accurate. At 14V it's +/- 0.2V, at 24V it's +/- 0.5V and at 48V it's +/- 1V

Product compatibility & data transmission to VRM

The GlobalLink 520 supports VE.Direct protocol and Instant Readout via Bluetooth. The latter is used for wireless data communication between the GlobalLink 520 and compatible smart devices. The data from devices connected via VE.Direct
and Instant Readout can then be monitored via the VRM portal. See also the Victron smart devices and RuuviTags [18] chapter