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RZ Salinity Refractometer Dual Scale Salinity Meter, ATC Professional Salinity Water Test Kit for Aquariums, Marine Monitoring, Fish Tanks, Saltwater Testing 0-100ppt & 1.000-1.070 Specific Gravity

Amazon.com Price:  $15.99 (as of 28/03/2022 16:17 PST- Details) & FREE Shipping.

Less Sample Than Hydrometer: just 2 to 3 drops, wait for few seconds and get the accurate value, refractometer can measure salt water or salinity of water, ideal for fish tank, aquarium, seafood water tank, salty pools & spas and etc.
2 Scales Salinity Refractometer measuring range w/w 0-10% 1.000-1.070SG, accuracy:±1%, specific gravity (D 20/20) and parts per thousand, resolution 1PPT.
Durable Salinity Meter is made of ABS rubber and aluminum, resistant to abrasion and corrosion. Plastic box and sponge covered to make the refractometer safe.

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