Saint-Elme Active 2D Lightning Arrester from Franklin France Saint-Elme Active 2D lightning arrester is one of the advanced lightning protection products that works by using ESE (Early Streamer Emission) technology. This device consists of two main systems: 1. Primary System (Impulse Device) that stores the electrostatic energy in the atmosphere and provides the necessary energy to create an updraft when the storm is approaching. 2. **Secondary system (Power Device)** that stores solar energy in strong capacitors and provides the energy needed to continue the upward current. This device with advanced sensors is able to identify the electric field of the environment and as soon as it reaches a certain threshold, it releases the necessary energy to continue intercepting the lightning current. The key features of this lightning rod are: - Generate and strengthen the upward flow at key moments - Use of automatic and clean energy through solar cells - High resistance to corrosion - Compliant with NFC 17-102 standard - The possibility of remote testing and checking with special tester devices This lightning arrester is designed to protect buildings and outdoor environments and comes with a variety of mounting systems. Its different models have a protection radius of up to 120 meters, depending on the installation height and the level of protection required for its advanced technology, it is considered one of the best options for protecting large industrial and commercial buildings.