| Measuring range | 0.001 to 9999 |
| Stability | A (absorbency of light) <0.003 within 3 mins |
| Linearity error | <3.0 % |
| Repeatability error | A (absorbency of light) <0.005 |
| Wavelength range | Red light: 680 ± 2 nm, Blue light: 420 ± 2 nm, Green light: 510 ± 2 nm |
| Sensitivity | Red light: ≥ 4.5 × 10<sup>-5</sup> , Blue light: ≥ 3.17 × 10<sup>-3</sup> |
| Moisture measure range | A: humidity 0 to 100 %, B: Accuracy: ±3 % |
| Measurement time (for soil N, P, K) | ≤30 min<br/> 5 pcs soil samples at one time ≤50 min (including pretreatment time) |
| Soil moisture mode | <table class='table table-striped table-bordered table-responsive'><tr><td><strong>Moisture content rate testing range</strong></td><td>0 to 100 %</td></tr><tr><td><strong>Moisture unit</strong></td><td>% (m<sup>3</sup> /m<sup>3</sup>)</td></tr><tr><td><strong>Accuracy</strong></td><td>± 2 %</td></tr></table> |
| pH mode | <table class='table table-striped table-bordered table-responsive'><tr><td><strong>pH Measurement range</strong></td><td>1 to 14 pH</td></tr><tr><td><strong>pH Accuracy</strong></td><td>± 0.1</td></tr></table> |
| Salinity mode | <table class='table table-striped table-bordered table-responsive'><tr><td><strong>Salinity range</strong></td><td>0.01 % to 1.00 %</td></tr><tr><td><strong>Salinity accuracy</strong></td><td>± 5 %</td></tr></table> |
| Dimension | 340×280×100 mm |
| Gross weight | 18 kg |
| Power supply | AC 180 to 240 V, 50 Hz |
