Perbesar Gambar| Fungsi : alat ukur kadar NPK organik matter, pH, Salinity pada tanah. |
| Specification : | |
| Technical parameters: | |
| 1. Nutrient technical parameters: | |
| - Stability | : A(absorbency of light) drift < 0.003 |
| in three minutes. | |
| - Repetitiveness | : A(absorbency of light) < 0.005 |
| - Linearity errors | : <3.0 % |
| - Sensitivity | : Red light ≥ 4.5 × 10-5; Blue light ≥ 3.17× 10-3 |
| - Wave length range | : Red light 620 ± 4nm; Blue light 440± 4nm; |
| Green light 520 ± 4 nm | |
| - Anti-knocking performance | : Qualified |
| (Attention Above technical parameters all exceed national standards) | |
| 2. PH : | |
| - Testing range | : 1-14 |
| - Error | : ± 0.1 |
| 3. Salinity : | |
| - Testing range | : 0.01% -1.00% |
| - Relative error | : ± 5% |
| 4. Soil moisture : | |
| - Moisture unit | : % (m3/m3) |
| - Moisture range | : 0-100% |
| - Accuracy | : ± 2% |
| 5. Power: | |
| - Alternating current | : 80V- 240V, 50Hz |
| - Direct current | : 18V, 5W (With tester) |
| 6. Manual book | |