Adjustable Pressure Vacuum Switch Liquid 1,IP65 2,Security system led failure 3,manual start switch reset 4,Tension Led ... Vacuum Switch Liquid1, Coverage: As a completely new device,it can guarantee the optimum control of electric pumps used in a ... of the failures that have caused the blockage,allows the system to be restarted by pressing the reset buttonMORE INFORMATIONS,CONTACT ...