Description: It is for measuring the salinity of salt water quickly and accurately, ideal for agriculture, industry and research application, such as mariculture, fish culture, aquarium, marine survey, water quality monitoring, salt production, manufacture of normal saline, salinity measurement in food processing etc. It can also be used for medical institutions and university research. Operating procedures: 1. Open the cover and clean the detection prism with a soft cloth. 2. Take the test solution, place it on the detection prism, gently close the cover to avoid air bubbles, and make the solution spread over the prism surface and put the instrument into the light plate. 3. Align the light source or the bright area, observe the field of view through the eyepiece, and turn the eyepiece to adjust the handwheel. 4. Make the blue-white boundary of the field of view clear, and the scale value of the boundary is the concentration of the solution. Speciation: Salinity: 0~10% Study accurately: 0.01% Size: (Dia.) x (H)17 x 4cm / 6.69 x 1.57 inch (appr.) Package Included: 1 x Salinity Refractometer 1 x Cloth 1 x Pipette 1 x Instruction Manual 1 x Mini Screwdriver 1 x Storage Case with Inner Protective Tray

[ FULL KIT ]: 1 x Storage Case with Inner Protective Tray, 1 x Salinity Refractometer, 1 x Mini Screwdriver, 1 x Cloth, 1 x Pipette, 1 x Instruction Manual. [ WIDE USAGE ]: the salinity refractometer can test the concentration of salt water, perfect for aquarium marine monitoring in scientific research and clinical laboratories. [ EASY TO USE ]: Place 2 drops sample on the main Prism and close the panel and hold the refractometer up to the light and look through the eyepiece. [ STRUCTURE & DESIGN ]: Copper construction, main prism + daylight plate + calibration screw + rubber grip + focus adjustment + eyepiece. You can adjust the prism when you can not see scale clearly. The Soft rubber eye piece makes you have a comfortable viewing. [ MEASUREMENT RANGE ]: 0 to 10% salinity, 0.01% Study accuracy.

Batteries Required?: No. Volume: 1 Cubic Centimeters. Is Discontinued By Manufacturer: No. Best Sellers Rank: #270,789 in Pet Supplies. Customer Reviews: 4.1 out of 5 stars 44 ratings 4.1 out of 5 stars. Item model number: Yosooxqfp439kv7. Country of Origin: China. : B07FYLQBBY. Item Weight: 3.52 ounces. Product Dimensions: 8.66 x 3.54 x 2.36 inches.