Specification Brand : Agriculture Solutions LLC BulletPoint1 : Data logging for up to 5,000 measurements composed by value and associated species name. BulletPoint2 : Windows compatible software and USB data cable. BulletPoint3 : Canadian Journal of Soil Science found "Equivalent performances were observed for SPAD and atLEAF values in different environments regardless of crop species. Therefore, the atLEAF Chlorophyll meter can be used as an inexpensive alternative to the SPAD-502 meter." Without the $2500+ price tag. BulletPoint4 : Easily convert units to SPAD units if needed. BulletPoint5 : Great indication of nitrogen update and plant health. BulletPoint6 : Product 2: Double-sealed. Color : One Color Directions : Take out a small test stick, touch the tested liquid, and compare the test result with the standard color on the map after a few seconds. For specific use cases, follow the detailed instructions provided in the product description. ExternallyAssignedProductIdentifier : 7502980107593 ExternallyAssignedProductIdentifier1 : 0610708540410 ExternallyAssignedProductIdentifier2 : 610708540410 ItemDisplayWeight : 0.8 pounds ItemName : Agriculture Solutions LLC atLEAF+ Digital Chlorophyll Meter with Software ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 1 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-ph-meters Manufacturer : Agriculture Solutions LLC Material : Paper ModelName : 240491751 ModelNumber : atLEAF+ NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : unknown Pattern : Sensor + Solution Kit, LLC-AI1109 8oz. PhRange : 0-14 ProductDescription : This easy to use handheld device, quickly and easily determines the chlorophyll levels of your leaves. Chlorophyll levels are a good indicator of nitrogen levels and plant health. Data log up to 9,554 measurements. Easily convert your readings to SPAD units when needed. ProductSiteLaunchDate : 2008-08-18T23:39:17-00:00 RecommendedUsesForProduct1 : ph Test RecommendedUsesForProduct2 : Saliva Test RecommendedUsesForProduct3 : Urine Test RecommendedUsesForProduct4 : Alkaline Test RecommendedUsesForProduct5 : Acidity Test Size : One Size Style : Spear Sensor SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 56101600