The Model EL kit is an inexpensive combination soil test kit for soil pH, nitrogen, phosphorus, and potassium tests. 
 
The simplified test techniques are easy to follow, and provide reliable, qualitative results.
 
Kit includes 30 pH tests, 15 nitrogen tests, 20 phosphorus tests, 15 potassium tests, Study of Soil Science book, LaMotte Soil Handbook, 6 test tubes, and test tube stand. 
Comes in a zippered case.