Meter - Soil Fertility & pH L1-Art & Craft-L2-Drawing-L3-Ink For additional protection

For additional protection

The Botzees Colour Sensor Kit is an engaging expansion set designed to work with the original Botzees - Building Blocks Robot (PAT83101)

Grace starts her own game

Material: One-sided print on durable polyester

With its vibrant colours and soft textures

Meter - Soil Fertility & pH L1-Art & Craft-L2-Drawing-L3-Ink For additional protectionGives accurate results of the pH and fertility of the soil without batteries needed. The pH portion of the tester utilises the chemical reaction known as Oxidation Reduction to measure pH within the range of 1 through 9. Fertility is in the range of 'Too Little', 'Ideal' and 'Too Much'.