
Basic Parameters
| Brand | Hold | Model | HED-TYA |
| Applicable Scope | Soil Testing | Custom Processing | No |
| Business Model | Self-produced and Self-sold | After-sales Service | Lifetime Warranty |
| Quality Standard Implemented | National Standard | Material | Engineering Plastic |
| Place of Origin | Shandong |











Hold Soil Fertility Tester, Soil Fertility Tester Manufacturer
Soil Fertility TesterIt can detect SX nitrogen, available phosphorus, SX potassium, total nitrogen, total phosphorus, total potassium, organic matter content in soil, chemical fertilizers, organic fertilizers, and plants, as well as soil pH and salt content (extended). Microcomputer control, digital circuits, programmed design, LCD display, dual AC/DC power supply, can be used for field testing, greatly reducing operator errors and labor intensity.
Instrument Technical Indicators:
1. Power Supply: Dual AC/DC, AC: 180V~240V, 50Hz; DC: 5V~12V (built-in lithium battery)
2. Range and Resolution: 0.001-9999
3. Stability: Drift less than 0.003 within three minutes
4. Linearity Error: ≤3% (0.03, copper sulfate test)
5. Repeatability Error: ≤0.5% (0.005, potassium dichromate solution)
6. Sensitivity: Red light ≥4.5×10-5, Blue light ≥3.17×10-3
7. Wavelength Range: Red light 620±8nm, Blue light 440±8nm
8. Soil Moisture Technical Parameters: Moisture Unit: % (g/100g), Moisture Content Test Range: 0-100%, Accuracy: ±0.5%
9. Simultaneous extraction and determination of SXN, P, K three nutrients in soil, scientific guidance for fertilization
10. Simultaneous, rapid, and accurate detection of nitrogen (N), phosphorus (P), potassium (K) and other nutrients in fertilizers
11. Testing Speed: Testing one soil sample (N, P, K) ≤30 minutes (including pretreatment time)
12. Can test 8 soil samples simultaneously ≤1 hour (including pretreatment time)
13. Data Printing: Built-in one-key thermal printer (pioneering ZG design in China)
14. Instrument Dimensions: 492*305*165mm
Soil Testing and Fertilizer Formulation Instrument, Soil Fertility Tester