Pro pH & Moisture Soil Tester

Jonathan Green’s Pro pH & Moisture Soil Tester accurately measures soil pH and moisture levels in just two minutes. This high-quality professional tool is used by sod growers, golf course superintendents, sports field managers and landscapers to determine the right time to add fertilizer and limestone (such as Jonathan Green Mag-I-Cal® for Lawns in Acidic Soil).

Source: https://www.jonathangreen.com/product/pro-ph-moisture-soil-tester/