This AN12B Antenna is independently developed by our company and deeply optimized for ETC toll collection systems and vehicle management scenarios. Adopting a narrow beam design (horizontal 30 °), it accurately focuses on the lane direction, effectively isolates adjacent lane interference, and significantly improves the success rate of ETC recognition. 12dBi high gain enables stable reading and writing over long distances, covering farther lanes and reducing the number of device deployment points.   The whole Antenna has a high level of protection (dust-proof and waterproof, anti-aging shell, -40 ℃~+55 ℃ wide temperature operation, lightning protection DC grounding), is free from wind, rain and sun, and can operate reliably outdoors for a long time. Easy to install, with a straight out N-type joint at the bottom, and designed with an angle adjustable installation bracket , one person can quickly complete the installation. Advantages ▸ 12dBi High Gain: Effectively improves read distance and coverage range ▸Linear polarization design, longer read distance & less adjacent lane interference ▸ Protective class IP67 for both outdoor indoor sue ▸ Flexible matching installation bracket, adjustable installation angle