Salinity Refractometer with ATC,Saltwater Aquariums Dual Scale 0-100 PPT & Specific Gravity 1.000-1.070 Salinity Tester,for Marine Monitoring,Fish Farming,Pool Hydrometer Meter

الوصف

Salinity Refractometer with ATC,Saltwater Aquariums Dual Scale 0-100 PPT & Specific Gravity 1.000-1.070 Salinity Tester,for Marine Monitoring,Fish Farming,Pool Hydrometer Meter