Pass ISO9001 test 70 kinds, printing function G.W: 10KG V:68*41 ... PH, organic matter, soil PH, soil salinity, with storage and printing function, built-in the amount of nutrients needed for ... guidance for fertilizing amount according to needs, with printing function Characteristic:Can quickly test N,P,K organic ... 240V,50HzDirect current: 18V, 5W (With tester) With Printing Function Soil Nutrient Tester