... ,P,K organic matter, salinity, and PH in the soil, fertilizer and plantsWith the function of time display, can automatically record ... display, easy to operateCan set crop variety, crop yield, fertilizer variety, and automatically count the fertilizing amountBuilt-in large capacity ... :Alternating current: 80V- 240V,50HzDirect current: 18V, 5W (With tester) With Printing Function Soil Nutrient Tester