Where can I buy a tracker to track people?

Tianjin Binhai Photothermal Tracking Technology Co., Ltd. According to Baidu map, Tianjin Binhai Photothermal Tracking Technology Co., Ltd. was established on 20 14 and is located in Binhai Science and Technology Park of Tianjin Binhai High-tech Zone. It is a regular company protected by the official website Certification Law, so it is very reliable. The company is mainly engaged in technical development, consultation and transfer of thermal power equipment tracking and control system. Tracker and control system manufacturing, etc.