Don't buy the Ubiquiti lightning arrestors, we put in several at our radio sites, and have had to pull them ALL out due to "Intermittants" in the ethernet connector jacks. Tried all ways of cleaning the contacts, with NO luck! It takes 3-4 tries to get a good cable test from our Netonix switch. Then after we had it working, it went intermittent that night, and took down the system. 2 hour drive to bypass the arrestor!
I have been trying to get in a Mimosa "HID" Lightning arrestor in to test it (streakwave is out of stock).