... meeting, the LCD monitor lift, which is hiding under the table, can lift up the monitor by manual, remote or RS232, RS485 ... control; after use finished, lift down to keep the table tidy, and the LCD monitor lift anti-dusty, anti-thief ... , Lift-up, Lift-down.2. Remote control3. RS232, RS485 controlYou can control the LCD monitor lifts working as individual, group or ...