0?28% Salinity Optical Refractometer Portable Handheld Refractometer for Seawater Aquarium

1、Product Structure Analysis Fast measurement, accurate data, convenient use, wide application and complete equipment. 2、Adjustable Eyepiece When salinity refractometer scale is not clear, you can gently rotate the eyepiece for adjustment. 3、Clear Reading 0?28% salinity refractometer has fast detection, accurate measurement, clear display and convenient use. 4、Cover Plate Function The use of cover plate is to protect the prism and make the measurement more stable. 5、Calibration Screw Drop distilled water on the prism and turn the zero adjustment screw to adjust the dividing line to 0% of the scale. Item Type Refractometer Material Plastic, Aluminum Color As Pictures Shown Weight Approx. 253g 8.9oz Salinity 0 28% Product Size Approx. 17.2x4x4cm 6.8x1.6x1.6in Salinity Refractometer§Salinity Refractometer for Aquarium§Salinity Refractometer for Seawater§0?28% Salinity Refractometer§Portable Refractometer§Handheld Refractometer 1 x Refractometer nbsp 1 x Straw 1 x Lens Cloth nbsp 1 x Screwdriver nbsp 1 x Manual 1 x Plastic Box nbsp