... PH in the soil, fertilizer Soil Nutrient detectorTest N, P, K,humic acid,organic matter,salinity,PH ... description:Soil Nutrient Analyzer can quickly test the N,P,K organic matter, salinity and PH in the ... at the first time.Characteristic:Can quickly test N,P,K organic matter, salinity, and PH in ... ,50HzDirect current: 18V, 5W (With tester) Function:Test N,P,K, PH, organic matter, soil PH, soil salinity, ...