Because of its safety, ease of use, wide application, is applied to the customs, airports, financial institutions, hotels, campus, high-grade office buildings and so on.

因其安全、易用性、适用面广，被应用于海关、机场、金融机构、宾馆、校园、高档写字楼、智能化小区等场所。

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When she went to the Brooklyn College Campus Security and Safety Office to complain about her suspicions, they offered her an involuntary two-week stay at a psychiatric hospital.

FORBES: Brooklyn College Student Committed to Mental Institution After Hidden Camera Complaint