Supply Of Digital Hydrometer For Specific Gravity Testing Of Conventional Locomotive Lead Acid Battery Rating 10 Volt 75 Ah Measurement Rang:- Sulphuric Acid Specific Gravity 1.000 To 1.3000. Resolution:- 0.001 International Protection Class Ip64; Power Supply:- Dc9v 006p Battery. Make- Mettler Toledo/ Cole Parmer Or Atago Or Lemis India Only..