Tender For supply of engineering lab - nephelotubidimeter , digital electrical conductivity meter with tds , digital ph meter , hot air oven with temperature controller , muffle furnace with microprocessor controller , digital flocculator , cod digester, digital temp controller , do meter, do range , high volume air sampler , centrifuge micro 50 ml , centrifuge 1 micro litres , noise level meter , weighing balance , electronic balance , double distillation unit , vacuum pump oil free portable , suction apparatus , orbital shaking incubator , microscope , desiccator , magnetic stirrer with hot plate , water bath , spectrophotometer , flame photometer , imhoff cone with stand , portable calorimeter , adjustable volume pipettor , autoclave