supply of supply and installation of the ohe power esence / absence indicator for inspection pit as per model no. ss402 .supply and installation of the ohe power esence / absence indicator for inspection pit as per model no. ss402 ., supply and installation of the ohe power presence / absence indicator fo r inspection pit as per model no. ss402 of m / s samadhan or equivalent. each setconsi sts of following items. ( 1 ) . sensor mount with guard, qty in each set = 01 no. ( 2 ) . seal edsensor, qty in each set = 01 no. ( 3 ) . connecting cable of length 05 meter, qty. in ea ch set =01 no. ( 4 ) . display cum power supply unit with working input voltage 180v to 2 50v ac, qty ineach set = 01 no. & display unit should be able to indicate power on / off and sensor failure, qty in each set = 01 no. ( 5 ) . connecting cable 02 with length 05 met er qty in each set = 01 no. [ warranty period: 30 months after the date of delivery ]