Specification Brand : Inland Seas BulletPoint1 : Calibrated for seawater (NSW) at 77 F, the normal temperature range for reef aquariums ( most standard refractometers are calibrated at 59F). Easier to read, higher resolution display, focused to the relevant range for reef aquariums of up to 40 ppt. BulletPoint2 : Includes Integrated Automatic Temperature Compensation (ATC) for accurate measurement at standard ambient temperature. Includes dropper and screwdriver for calibration adjustments. BulletPoint3 : With Two Little Fishies AccuraSea you can measure your salinity precisely. AccuraSea seawater reference solution is the only calibration solution of its kind made from real seawater. It’s pure natural sea water micron filtered and UV sterilized then adjusted with reverse osmosis water to the standard S = 35 or conductivity of 53 mS/cm at 25°C (77°F). Use it to accurately calibrate seawater refractometers and check the accuracy of swing-arm hydrometers. BulletPoint4 : Measurement Time:3 seconds BulletPoint5 : Temperature:10~100℃ ExternallyAssignedProductIdentifier1 : 0681565297151 ExternallyAssignedProductIdentifier2 : 681565297151 ItemName : Inland Seas MarineAndReef.com Reefractometer (aka Refractometer) & AccuraSea Bundle (2 Items) ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-refractometers Manufacturer : Inland Seas NumberOfItems : 50 PartNumber : SB202109177 ProductDescription : It is suitable for determining the content of soluble solids in fruits, vegetable products and fresh fruits and vegetables. The determination result is expressed as a percentage of sucrose mass. If the product contains non-sucrose substances, the determination result is an approximate value PAL-106 (orange) Accuracy: Brix±0.2% Temperature:±1℃ Resolving Power:Brix:0.2% Temperature:0.1℃ Measuring Range:Brix:0.0~32.0% Temperature:10~100℃ Use temperature:10-40℃ Batteries:2*AAA 1.5V Batteries(not include ) Measurement Time:3 seconds Size:130*55*25mm Net weight:about 100g. ProductSiteLaunchDate : 2021-09-20T21:50:54.725Z TargetAudienceKeyword : reef aquarium UnitCount : 1 UnspscCode : 10110000