supply of digital hydrometer for testing the specific gravity of lead acid batteries with rating 10 volt 75 ah used in conventional locomotives with the requirements as follows: 1) measurement range:- specific gravity of sulphuric acid 1.000 to 1.3000, 2) resolution:- 0.001 international, 3) protection class ip64, 4) power supply:- dc9v (006p battery). make- mettler toledo/cole parmer/atago/lemis india/eagle eye/anton paar only.digital hydrometer for testing the specific gravity of lead acid batteries with rating 10 volt 75 ah used in conventional locomotives with the requirements as follows: 1) measurement range:- specific gravity of sulphuric acid 1.000 to 1.3000, 2) resolution:- 0.001 international, 3) protection class ip64, 4) power supply:- dc9v (006p battery). make- mettler toledo/cole parmer/atago/lemis india/eagle eye/anton paar only.,digital hydrometer for testing the specific gravity of lead acid batteries with rating 10 volt 75 ah used in co nventional locomotives with the requirements as follows: 1) measurement range:- specific gravity of sulphuric acid 1.000 to 1.3000, 2) resolution:- 0.001 international, 3) protection class ip64, 4) power supply:- dc9v (006p battery). make- mettl er toledo/cole parmer/atago/lemis india/eagle eye/anton paar only. [ warranty period: 30 months after the date of deliv ery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]