supply installation and commissioning of rf type ash level indicator system for esp hopper with all standard accessories as per enclosed list for 210 mw unit no . 3 at sgtps birsinghpur , a . supply portion , rf type ash level indicator system for esp hopper ( for high & low level ) comprising of ( a ) sensing probe with socket ( b ) electronic controller ( ip-67 ) ( c ) special cable as per tender specification , 10% qty . of mandatory spares for future day to day maintenance of rf type ash level indicator system for esp hopper ( for high & low level ) which comprising of ( a ) sensing probe with socket ( b ) electronic controller ( ip-67 ) ( c ) special cableas per tender specification , control panel mimic showing high/low level of esp of each hopper with audio visual indication located in ash handling plant control room ( for 48 nos . level switch ) as per tender specification , junction box for field as per tender specification , work portion , installation & commissioning of rf type ash level indicator system at esp hopper of u# no . 3 as per annexure -i