Liquid Level Indicator Are Used For Monitoring Of Liquid Levels In Tank.The System Provides Visual Multi Level As Well As Continuous Level Indication We Can Provide Audio Visual Alarms At Desired Levels & Automatic Control Of Pumps Based On Users Requirements principle the Operation Is Based On Magnetic Sensing Of Levels.A Float Rides On Pvc Pipe Probe In Which Level Sensors Are Enclosed & Sealed.Float Moves With The Rise And Fall Of Liquid Level & Actuates The Sensors Magnetically.The Signals From The Sensors Are Received By The Main Control Unit Which Can Be Placed At The Floor Of Your Choice.This Unit Indicates Liquid Levels & Can Also Provides Necessary Output Of Alarm And Automation