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four-line scientific calculator
body fat measurement charts
In-car charger with additional USB cable so you can charge on-the-go
standard deviation
Luster Leaf 1840 Rapitest Soil pH Meter four-line scientific calculatorLuster Leaf 1840 Rapitest Soil pH Tester Meter Probe About the product: Unique corded probe for easy reading while measuring Contains simple, yet extensive instructions for use and cleaning pad Includes recommendations for 400+ plants Uses proper logarithmic scale plate Ideal for fruits veggies, trees shrubs, plants flowers and grasses lawns Product description: The #1840 Soil pH Meter from Rapitest uses a flexible corded probe and large scale plate