Purchase Qty. Reference FOB Price
1-9 Pieces US$575.00
10-49 Pieces US$530.00
50+ Pieces US$485.00
Product Description
ZD soil tester NPK Soil Instant Tester Nutrient tester Nitrogen Phosphorus Potassium ZD soil ph meter Working principle: The electro-chemical method and the method of ionization redction were adopted. Application: The tester is for field use to quickly test instant Nitrogen Instant ...