Meter - Soil Fertility & pH L1-Science-L2-Physics-L3-Electricity Kits or themed events centred around

or themed events centred around marine life

making them ideal for classroom use

Safety: Non-toxic and suitable for educational use

Green Toys are made from high-density polyethylene (HDPE) plastic

Ages: Recommended for children 3 years and older

Meter - Soil Fertility & pH L1-Science-L2-Physics-L3-Electricity Kits or themed events centred aroundGives 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'.