wrea Sea Salinity meter salt water concentration Salinity Refractometer Handheld Sea Water Mariculture Breeding Gravimeter

Features. Shading cover. Equipped with a light-shielding cover to protect the prism from external influences during measurement and improve measurement accuracy. Automatic temperature compensation. With automatic temperature compensation the reading is accurate even at different temperatures. The measurement process is fast and accurate. Easy to use. Place 2 - 3 drops of sample onto the prism and then look through the eyepiece for readings the scale will clearly show the measuring results. Correcting screw knob. Comes with a metal screw knob which is used to correct the meter when there is error in measuring results keep the measuring machine always accurate. Adjustable eyepiece. The eyepiece is adjustable to make the sight more clear so as to prevent getting a wrong result due to the blurred scale. Specifications. Material:ABS+optical instrument. Item color:black. Temperature compensation: Yes. Measuring range: 0-10%(accuracy of 0.1%). Size:19.6*4*4cm/7.7*1.57*1.57inch(L*W*H). Net weight: 107g/3.77oz.