Remote control is more convenient. Ordinary televisions are operated by remote control. However, there are a lot of users who use multiple monitors to monitor multiple places together. At this time, if you use remote control, you cannot control each monitor. For the convenience of operation, the monitors are provided with RS232 serial port connection, which is convenient for the monitor to connect to the central control or computer, and carry out remote unified management through the control software.

As the display terminal of the closed-circuit monitoring system, the monitor is an indispensable part of the monitoring system in addition to the camera. For a long time, monitors have been mainly used in power, energy, public security/transportation, finance, jewelry stores, hospitals, subways, stations, airports, exhibition halls, commercial office buildings, leisure and entertainment places, etc., and are responsible for security work. Due to the development of technology, the cost of the whole CCTV system has been well adjusted. More and more small enterprises are also able to bear the price, and begin to establish their own monitoring systems to meet security or other monitoring needs.