Buy Battery Hydrometer - Omsons Glassware Buy Battery Hydrometer first time in India with NABL and ISI Certification exclusively from Omsons Glassware Pvt. Ltd. Which is Indiaâ??s best certified Laboratory Equipment Manufacturer. Omsons assures you best service and quality products. Model no. L2B Range 1.100-1.300 Sp,Gr at 27�° C (+ - 0.005) Uses: Railway, Power Plant, Battery for Defence etc. HSN: 90258010 Model no. M2B Range 1.100-1.300 Sp,Gr at 27�° C Uses: Industry, House Hold Batteries etc. HSN: 90258010 Model no. S2B Range 1.100-1.300 Sp,Gr at 27�° C Uses: Car, Scooter, Bikes etc. HSN: 90258010