supply of colony counter, table top ph meter , supply, installation and demonstration of table top ph meter as per attached technical speci fication annexure-a. make- hanna instruments, vsi electronics, electronics india, milwaukee instruments, i gene labserve or equivalent. [ warranty period: 30 months after the date of delivery ] ] , supply, installation and demonstration of digital laboratory colony counter for counting of ba cterial colony in laboratory as per attached technical specification annexure-b. make-cole-parmer, interscie nce (scan), labtronics, electronics india, and lab junction or equivalent. [ warranty period: 30 months af ter the date of delivery ] ]