Features
Hydrometer:it is convenient to test the specific gravity and temperature of water,pram meter
Pram meter:placed in any corner of the fish tank, floating design, automatic temperature/ testing,glass float meter
Glass float meter:made of premium glass material which can directly with water,pram meter
Glass densitometer:it is easy to use and suitable for fish tank and aquarium,pram meter
Light meter:in the aquarium, it is convenient to measure the specific gravity of the sea water and provide convenience for raising fish,pram meter
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