LSG428 HF RFID library security gate is an anti-theft alarm device specially designed for domestic and foreign public and college libraries. This product can quickly detect electronic tags in three dimensions in the sensing area of the antenna. This product supports the electronic tags of multiple manufacturers that comply with the ISO15693 standard. It supports two modes of active alarm and passive alarm. In active alarm mode, it supports AFI, EAS and EAS + AFI alarm. This product can be widely used in the entrance / exit for anti-theft in libraries and archives, etc.