What is the difference between this unit and the eth-sp?

The eth-sp2 is an improved version of the original eth-sp.

Will this protect outdoor CAT5e cable from lightning?

Properly installed these should reduce and in some cases eliminate equipment damage from various high-voltage atmospheric situations including lightning. But lightning and wiring and lightning rods and other protection equipment is complicated and should be properly designed and installed to protect critical systems, and these gas-discharge-based units are one good component in a design. Ubiquiti probably has good design materials. These units are an inexpensive way to improve protection, but don't be fooled... Nothing will save typical outdoor WiFi gear from a direct strike, but these can help keep the damage from going further than that. Be sure to use shielded network cable with shielded connectors and ensure the connectors and cable shield are robustly connected -- sometimes the little ground wires break off.

How do you know when the surge is no longer working?

When it won't pass an Ethernet signal. The ESP circuit sacrifices it self when it suppresses the surge.

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Eth-sp-g2 Overcurrent Protectors (500A, White, 80g, 91mm, 61mm, 32.5mm)

Product ID: 259476154

Details

Brand
Ubiquiti
Cable type
Ethernet
Compatible devices
Router Switch
Connector type
RJ45
Special features
High Speed

⚡500A overcurrent capacity

📶Supports 10/100/1000 Mbps Ethernet

🛠️Quick & easy installation

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Description

⚡ Protect your network like a pro—surge defense that keeps you connected!

GIGABIT SPEED READY - Seamlessly compatible with 10/100/1000 Mbps Ethernet for ultra-fast data flow.
COMPACT LIGHTWEIGHT - Sleek 80g form factor fits effortlessly into any setup.
PLUG AND PROTECT DESIGN - Install in minutes without hassle—no downtime, just uptime.
RELIABLE NETWORK SAFETY - Keep your critical connections safe from unexpected power surges.
POWERFUL 500 A SURGE DEFENSE - Shield your network with robust overcurrent protection.

The Ubiquiti ETH-SP-G2 is a compact, lightweight Ethernet surge protector designed to safeguard your network infrastructure with a 500A overcurrent capacity. Compatible with 10/100/1000 Mbps networks, it ensures high-speed data transmission while providing fast, tool-free installation for seamless integration into any professional environment.

Specifications

ASIN	B079HXKRW1
Best Sellers Rank	#19,434 in Electronics ( See Top 100 in Electronics ) #390 in Power Strips & Surge Protectors
Brand Name	Ubiquiti Networks
Cable Type	Ethernet
Color	White
Compatible Devices	Router, Switch, IP Camera, Network-attached Device
Compatible Phone Models	Samsung Galaxy S10
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	RJ45
Customer Reviews	4.6 4.6 out of 5 stars (790)
Data Transfer Rate	1 Gigabits Per Second
EU Spare Part Availability Duration	2 Years
Ethernet Cable Category	Cat 5e
External Testing Certification	Não
Frequency	1 GHz
Global Trade Identification Number	00701017581635, 00810354021633, 00817882023900, 04056572757138
Included Components	Ubiquiti ETH-SP
Indoor Outdoor Usage	Indoor
Item Shape	Rectangular Prism
Item Weight	80 Grams
Manufacturer	Ubiquiti Networks
Maximum Current	500 Amps
Maximum Voltage	700 Volts (DC)
Model	ETH-SP-G2
Model Name	ETH-SP-G2
Number of Items	1
Number of Pins	4
Other Special Features of the Product	High Speed
Outer Material	Plastic
Part Number	ETH-SP-G2
Recommended Uses For Product	Outdoor Power-over-Ethernet (PoE) device protection
Specification Met	CSA
UPC	810354021633 817882023900 701017581635
Unit Count	24 Grams
Wattage	6.1 watts

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