Soil Test Kit-Tablets.  8 sets for 4 different tests. pH (acid-Alkaline),  N (nitrogen). P (Phosphorus) & K (Potassium):  Tests are a simple operation:       Instructions supplied.

Tests for : pH (acid-alkaline) level, N (nitrogen food) for lawns and vegetables,

P (phosphorus food) for shrubs and trees and K (potash food) for fruits and flowering plants.

32 tests in all.