Monitoring and early warning device

The utility model discloses a monitoring early warning device which comprises a base, two alarms arranged at the upper end of the base, telescopic columns arranged on one sides of the alarms, a supporting column arranged between the two telescopic columns, a tooth groove formed in the surface of one side of the supporting column, a sleeve rod arranged at the upper end of the supporting column, the sleeve rod connected with the supporting column in a sleeved mode, and a lifting device arranged on one side of the bottom of the sleeve rod. A rotating shaft is rotatably connected to the interior of the supporting plate; a monitor is arranged at the upper end of the rotating shaft; a baffle is arranged at the upper end of the monitor; a cleaning device is arranged at the upper end of the baffle; according to the monitoring and early warning device, the height can be adjusted conveniently, the angle of the monitor can be adjusted, and the monitor can be cleaned. 本实用新型公开了一种监控预警装置，包括底座，底座上端设有报警器，报警器有两个，报警器一侧设有伸缩柱，两个伸