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.

The monitor is an important part of the closed-circuit monitoring system, is the display part of the monitoring system, is the terminal equipment of the monitoring system, acts as the "eye" of the monitoring personnel, and also plays a key role in the post investigation.