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Hydrometer for Measuring Salinity, sera model 08212
Summary description:
Hydrometer for measuring salinity from sera, model 08212. A handheld floating hydrometer designed to determine salt concentration in aquarium and aquarium-related water. Provides a quick visual reading of relative salinity for routine checks, water changes and mixing marine or brackish water. Simple to use without electronics; suitable for hobbyists and small-scale aquarium maintenance.