Model | Function |
TPY-IV | 1. Test N, P, K, Organic Matter. 2. With storage function. 3. Built-in the amount of nutrients needed for growth of 73 kinds of crops, can provide guidance for fertilizing amount according to needs. 4. Without printing function. |
TPY-6A | 1. Test N,P,K, organic matter, soil pH, soil salinity. 2. With storage function. 3. Built-in the amount of nutrients needed for growth of 73 kinds of crops, can provide guidance for fertilizing amount according to needs. 4. With printing function. |
TPY-6PC | Based on TPY-6A, with a software, be able to connect to computer for data storage |
TPY-7PC | On the basis of TPY-6PC, but add one more parameter: soil moisture |