Water Salinity Refractometer, LEERCHUANG Dual Scales Hydrometer: Specific Gravity 1.000-1.070 & PPT 0-100 (1‰ = 1ppt = 1000 ppm), Handheld Seawater Tester for Aquarium, Marine Fish-Keeping, Pool Tank

About this item ? Easy to Use — Place 2 – 3 drops of liquid sample onto the prism of this hydrometer, then look through the eyepiece to get the reading directly. NO test jars needed, NO measuring or calculating work needed, operating easily salinity refractometer, convenient to use and save your time. ? Main Indicators — High accurate saltwater refractometer: Specific Gravity 1.000-1.070 & ppt 0-100. The seawater hydrometer is ideal for aquariums, tank, marine monitoring, agricultural, gardening & educational purposes. ? ATC Design — The refractometer adopts automatic temperature compensation technology from 10℃ to 30℃ (50°F~86°F), reading directly, fast, accurate and light weight. ? Packing List — 1 x hydrometer refractometer; 1x calibration screwdriver; 1 x pipette; 1 x instruction manual; 1 x cleaning cloth and a free hard case included which make the water refractometer meter convenient to store or carry around. ? About us — LEERCHUANG always strive to provide customers with satisfying refractometers and shopping experience. If you have any problem or suggestions about our hydrometer please let us know it and we will get back to you within 24 hours.