supply and installation of ohe power presence absence indicator for inspection diesel pit and st eaming shed pit as per clw specification clw es i 25 clw drawing numbers i clw es 3 sk 1 dkae ii c lw es 3 sk 2 dkae iii clw es 3 sk 3 dkae each set consists of items as follows i sensor mount with g uard qty 01 no ii sealed sensor qty 01 no iii connecting cable of length 05 meters qty 01 no iv dis play cum power supply unit with working input voltage 180 v to 250 v ac qty 01 no and display unit