Ubiquiti TC-GND for TOUGHcable Ethernet Cables
Here is the unboxing video:
Ubiquiti TC-GND UBNT Ethernet ESD Ground Grounding
These provide a very good ground for your outdoor Ethernet connections.
TOUGHCable Connectors: Specifically designed for use with Ubiquiti TOUGHCables and available in 20-pc boxes, TOUGHCable Connectors protect against ESD attacks and Ethernet hardware damage while allowing rapid field deployment without soldering.
Specifically designed for use with Ubiquiti TOUGHCable
Eliminates Ethernet ESD failures
Rapid field deployment without soldering
This part is available Here