Digunakan untuk menguji /mengukur kadar N, P, K, bahan-bahan organik, pH, salinitas, dan kelembaban pada tanah,pupuk, dan tanaman.
| Stability | : Absorbency of light drift <0.003 |
| Repeatability | : A (absorbency of light) < 0.005 |
| Linearity errors | : red light for Copper sulfate, and blue light for potassium bichromate <3.0% |
| Sensitivity | : Red light ≥4.5×10^-3, Blue light ≥3.17×10^-3 Blue light 440±4nm |
| PH Technical parameters | : Testing range 1-14 Error: ±0.5 |
| Salinity Technical parameters | : Testing range 0.01%-1.00% Relative error ±0.5 |
| Soil Moisture Technical parameters | : Moisture unit %(m³/m³) Moisture content rate testing range 0-100% Accuracy±2% Measurement range 0.01%-1.00% Relative error ±5% |
| Power | : AC 220V-240V, 50Hz DC 18v, 5W (built-in) |
| Gross Weight | : 10 KG |