Digital Hydrometer For Specific Gravity Testing Of Conventional Locomotive Lead Acid Battery Ra Ting 10 Volt 75 Ah Measurement Rang:- Sulphuric Acid Specific Gravity 1.000 To 1.3000. Resolution:- 0.001 I Nternational Protection Class Ip64; Power Supply:- Dc9V (006P Battery). Make- Mettler Toledo/ Cole Parmer Or Atago Or Lemis India [ Warranty Period: 30 Months After The Date Of Delivery ] ]