Measure soil pH and N/P/K in a simple visual soil test kit containing reagents and hardware for effective soil fertility monitoring. Measure soil pH, lime requirement, nitrogen, phosphorus and potassium (N/P/K) macronutrients using simple visual soil testing methods Complete soil test kit including reagents and hardware contained in a single shoulder case Developed specifically for portable use by a range of users such as agronomists, farming and fertiliser professionals.