Description: The wide range of applications allows it to be used in many different occasions. Fast and stable measurement makes it have a very high work efficiency. Its streamlined design of the body makes it very comfortable to hold and non-slip. Simple and convenient operation will not waste your time and energy. Made of metal and rubber material, it is very durable to use. The length of this product is 19.5cm, the width is 3.7cm and the height is 3.7cm. It is suitable for marine, marine aquaculture, food processing, etc. Item Name: Salinity Meter Material: Metal,Rubber Reading Resolution: 1% Measuring Range: 0-100% Measuring Proportion: 1.000-1.070 Features: Easy to Use, Fast Measurement, Widely Used Size Details: Size: 19.5cm x 3.7cm x 3.7cm/7.68" x 1.46" x 1.46" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Operation method: 1. Open the cover and carefully wipe the detection prism with a soft cloth. 2. Drop distilled water on the prism, turn the zero adjustment screw to adjust the dividing line to 0% of the scale, and then wipe it dry. 3. Drop the solution to be tested on the prism and close the cover to avoid bubbles and spread the solution all over the surface of the prism. 4. Point the light entrance plate of the instrument at the light source or bright place, observe the field of view through the eyepiece, and turn the eyepiece adjustment handwheel. 5. Make the blue and white dividing line of the field of view clear, and the scale value of the dividing line is the measured value of the solution. Package Includes: 1 x Salinity Meter 1 x Wiping Cloth 1 x Straw 1 x English User Manual 1 x Screwdriver 1 x Packing Box