Specification Brand : ILOPM BulletPoint : 0-28% BulletPoint1 : 1. Open the cover and carefully wipe the detection prism with a soft cloth BulletPoint2 : 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 BulletPoint3 : 3. Drop the solution to be tested on the prism and close the cover to avoid bubbles and spread the solution on the surface of the prism BulletPoint4 : 4. Point the light entrance plate of the instrument at the light source or bright place, observe the field of view through the eyepiece, turn the eyepiece adjustment handwheel BulletPoint5 : 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 Color : One Color ExternallyAssignedProductIdentifier : 7505705268661 ExternallyAssignedProductIdentifier1 : 0798038890020 ExternallyAssignedProductIdentifier2 : 798038890020 ItemName : Refractometer Handheld Salinometer 0-100% Salinity Aquarium ATC Refractometer 1.000-1.070SG Salinity Seawater Salinometer For Aquarium Enhanced Precision ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-refractometers Manufacturer : ILOPM Material : metal ModelName : 2022080921 ModelNumber : 2022080921 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : 2022080921 ProductDescription : Description: Measuring Ranges: 0-100 ppt of NaCl and 1.000 to 1.070 Specific Gravity (0-10%) Divisions: 1 ppt / 0.001 Specific Gravity Accuracy: ±1 ppt / 0.001 Specific Gravity (±0.10%) Material: Metal + Rubber grip Specifications: Soft rubber eye piece for comfortable viewing Equipped with scale measurement which provides direct reading Determines the amount of dissolved salt and dissolved solids Accurate testing results guaranteed Extremely easy-to-use and calibrate