Sinicon WaterSwitch System (IA & IIA); consists 1 No. SwitchMate and 1 No. WaterSwitch for System IA configuration and 1 No. SwitchMate and 2 Nos. WaterSwitch for System IIA configuration, effectively monitor and controls water/liquid levels in the overhead tank, sump, well etc. it prevents overhead tank from overflowing and also prevents overflowing of sump, well etc.