A Hydrometer for the uncomplicated monitoring of marine water density (salinity).
Since the salinity of marine water in an aquarium must be kept constant, aquarium water should checked regularly. The reading should be according to its immersion depth.
This device is intended to be used in saltwater aquariums. With easy, accurate readings of temperature and specific gravity. The Green indicators show safe range of salt level and temperature for most salt water species
Length: 168 mm
Width: 17 mm
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