XinJiaYi Water Salt Refractometer, Hydrometer with Two Scales: Specific Gravity 1,000-1.070 and PPT 0-100, Handheld Sea Water Tester for Aquariums, Marine Fish Keeping, Pool Tank

Easy to use: Add 2-3 drops of a liquid sample to the prism of this hydrometer and then look through the eyepiece to get the reading directly. No test glasses required, no measuring or calculation work required, easy to use salinity refractometer, convenient to use and time-saving. Main indicators: highly accurate saltwater refractometer: specific weight 1000-1070 & ppt 0-100. The marine hydrometer is ideal for aquariums, tanks, marine surveillance, agriculture, horticulture and educational purposes. ATC design: the refractometer uses automatic temperature compensation technology from 10°C to 30°C (50°F~86°F) and reads directly, quickly, accurately and easily. Packing list: 1 x hydrometer refractometer, 1 x calibration screwdriver, 1 x pipette, 1 x instruction manual (English language not guaranteed), 1 x cleaning cloth and a free hard case are included, which makes the water refractometer meter convenient to store or carry around. About us: XinJiaYi always strives to provide satisfactory refractometers and shopping experiences to its customers. If you have any problems or suggestions about our hydrometer, please let us know and we will get back to you within 24 hours., Manufacturer: XinJiaYi