We recommend using the Ubiquiti Ethernet Surge Suppresor that offers superior ESD protection.
You can also use any high-quality Gigabit surge suppressor that uses the 4 pairs for data and power. In our lab tests, we found that Transtector Gig-E suppressors works fine.
Some users have tested GigESS-HV from Wireless Beehive and results have been good.
For more information, visit our grounding guide for airFiber.