Aquarium Hydrometers

Safe Material:Made of plastic,aquarium clear Automatic Accurate Readable SaltWater Hydrometer. Durable Clear Acrylic:Accurate, durable, and easy to read your marine aquarium's salt level and specific gravity,Small and waterproof.if the specific gravity between 1.000 - 1.019,show that the specific gravity is small;if the specific gravity between 1.020 - 1.023,show that the specific gravity is nomal;if the specific gravity between 1.024 - 1.030,show that the specific gravity is big; Clearly Safe Zone Indicated:Includes solinity and specific grovity scales.The outside rang of scale indicates salinity(PPT).The inside range of scale indicates gravity.And with safe zone clearly indicated.Range of use: 0-40 degrees (1.000-1.030).If the salinity ppt between 32 - 40，show that the salinity hydrometer is high;If the salinity ppt between 27 - 31，show that the salinity hydrometer is normal; If the salinity ppt between 0 - 26，show that the salinity hydrometer is light.

Included components: All Components included in Picture and Description Cora life is one of the markets leading manufacturers of premium aquarium products Cora life's Hydrometer takes a true water sample at six inch depth

The seawater hydrometer is used to test the salt concentration in the seawater. The compact design makes the mechanical hydrometer easy to carry and use, efficient, accurate and reliable. Easy-to-view reading scale, for most Marine life, the applicable reading is between 1.021 and 1.023. Innovative design with filtering sponge at the inlet to efficiently eliminate the dirt in the marine water.

DUAL SCALES - Saltwater Refractometer measures on specific gravity (D20/20) 1.000-1.070 and parts per thousand 0~100‰ (1‰=1ppt=1000ppm), allow you to get the result in two different units by one test WIDELY APPIICATION - Seawaeter Refractometer designed for Aquariums, Marine Monitoring and measures salt water or salinty of water to help you to control concentration of salt water EASY TO USE - Put 2-3 drops of sample solution after calibration on prism, towards light, then get the accurate readings. Hallocool aquarium refractometer is ideal for replacement salinity hydrometers or expensive digital salinity tester