Although the United States Navy and British health service systems are already using robots, the global prison system has not yet seen robots. However, we are now informed that the Korean authorities are testing the world’s first prison robot. This kind of robot is mainly used for prison guard work. South Korea Reuters described it as "the world's first robot jail guard," using a 3D camera to detect inmates who had abnormal behavior patterns and issued an alert. Before that, there have been various concerns about the robot's full takeover of prison work. However, according to the robot developer, the robot itself does not have any weapon system. All it can do is to summon the correctional staff to the site to deal with the problem. It can autonomously patrol, but it can also be manually controlled via the iPad and has a two-way wireless communication system for prison staff to communicate with prisoners. South Korean authorities said that the robot will reduce the overwork of correctional officers and prevent the escalation of prison riots. Liquid Level Transmitter,Single Flange Differential Pressure Transmitter,Capacitive Single Flange Level Transmitter,High Performance Single Flange Level Transmitter Jiangsu Leitai Automation Instrument Co., Ltd. , https://www.ltybmall.com