High-precision soil trace element and macro-element detection kit

I. Testing Items

Soil ammonium nitrogen, available phosphorus, available potassium, nitrate nitrogen, hydrolyzable nitrogen, total nitrogen, total phosphorus, total potassium, organic carbon (Churling method), organic carbon (leaching method), pH, salinity, and moisture.

II. Testing Speed

Multiple nutrients in the soil, including available N, P, and K, are simultaneously extracted and determined.

Testing speed: Under normal proficiency, testing of soil ammonium nitrogen, phosphorus, and potassium takes approximately 20 minutes (including soil sample pretreatment and reagent preparation). Testing of a single trace element takes approximately 20 minutes.

III. Functionality

★1. Operating System: Android 5.1 operating system, quad-core processor, CPU frequency ≥ 1.8GHz, 16GB large-capacity memory, fast operation, strong stability, no lag or freezing. The manufacturer provides the software copyright certificate.

2. 7.0-inch color LCD screen (resolution: 1024*600), backlit for easy field operation. Instrument dimensions: 470*340*210mm; instrument panel dimensions: 432*292mm.

★3. Built-in bilingual (Chinese and English) display, one-button switching for seamless integration.

★4. Dual protection with password and fingerprint login, multiple accounts can be set up as needed to ensure the security and classification of test data.

5. Dual protection with password and fingerprint login, multiple accounts can be set up as needed to ensure the security and classification of test data.

6. Built-in clock chip, automatically calibrates time when connected to WIFI, and synchronously displays the current year, month, day, hour, and minute to ensure traceability of test data.

★7. GPS positioning function: Real-time display of satellite positioning latitude and longitude to clearly indicate the current testing location.

8. Data Printing: Built-in thermal printer (no need to change ribbon), capable of printing information such as test items, testing unit, testing personnel, testing time, channel number, absorbance, nutrient content (mg/kg), and QR code.

★9. The instrument is equipped with dual USB interfaces, allowing export of historical test data. Data is presented in a table format when viewed on a computer.

★10. Supports WIFI data upload; test results can be directly transmitted to a dedicated cloud agricultural data center. A dedicated cloud agricultural data center account is assigned to the enterprise, allowing viewing of uploaded data from different testing personnel. Platform data can be directly exported to a computer in table format.

★11. Equipped with a WeChat mini-program for viewing all historical uploaded data.

12. Built-in diagnostic atlases for common economic crops; detailed atlases are provided even when nine elements are missing, allowing for intuitive leaf surface comparison and diagnosis of saturation or deficiency.

13. All sample pretreatment experimental operation steps are built-in, eliminating the need for manual instructions. Users can operate step-by-step according to the instrument's prompts, making it more suitable for beginners. A built-in calibration function is included in the testing steps, eliminating the need for manual calibration or power-on/off calibration, ensuring testing accuracy. ★14. Built-in independent sample processing operation video, accessible via the instrument's main interface, providing one-on-one instruction.

15. Built-in soil testing and fertilizer recommendation system; direct calculation of soil testing and fertilizer recommendation can be performed after testing. It also has a separate fertilizer recommendation calculation module. The instrument includes standard nutrient values for over a hundred common economic crops and built-in fertilization correction coefficients, allowing calculation of fertilizer application based on target yield to guide agricultural production. Soil testing and fertilizer recommendation results can be printed, including crop type, fertilizer type, target yield, total requirement, and suggested fertilization plan.

16. AC/DC dual power supply; the instrument has a built-in high-capacity lithium battery, allowing for 10 hours of continuous operation on a full charge.

★17. External voltage display panel directly displays the real-time detection voltage, ensuring a stable testing environment and guaranteeing accuracy. It also features power-off protection; in the event of a sudden power outage, data is automatically saved to prevent data loss.

18. Four dedicated experimental light sources (red, blue, green, and orange) with stable wavelengths, a lifespan of up to 100,000 hours, excellent reproducibility, and high accuracy.

★19. A 4-channel fixed cuvette (solid-state module) is integrated with the instrument, eliminating mechanical displacement and wear. To ensure detection accuracy, the channels must be consistent with the light source; there are exactly four detection channels.

★20. The cuvette is housed in a sunken, sealed chamber, completely covered by a 15.7cm diameter circular light-shielding plate to prevent light leakage during experiments and ensure accurate results.

21. A high-strength PVC engineering plastic carrying case design is sturdy, durable, and easy to carry, suitable for field testing.

★22. Patent No.: ZL 2022 2 0923165.6

IV. Instrument Specifications

1. Power Supply: AC 220±22V, DC 12V+5V (Built-in 4800mAh high-capacity lithium battery)

2. Power: ≤5W

3. Measurement Range and Resolution: 0.001-9999

4. Repeatability Error: ≤0.03% (0.0003, potassium dichromate solution)

5. Instrument Stability: No preheating required; drift is less than 0.3% (0.003, transmittance measurement) within one hour. The instrument displays no digital drift within one hour of power-on (transmittance measurement), and the digital drift does not exceed 0.3% (transmittance measurement) or 0.001% (absorbance measurement) within two hours.

6. Linearity error: ≤0.1% (0.001, copper sulfate detection)

7. Sensitivity: Red light ≥4.5 ×10⁻⁵, Blue light ≥3.17 ×10⁻³, Green light ≥2.35 ×10⁻³, Orange light ≥2.13 ×10⁻³

8. Red light: 680±2nm; Blue light: 420±2nm; Green light: 510±2nm; Orange light: 590±4nm

9. Display screen resolution: 1024*600

10. Instrument shock resistance rating: IP65

11. pH value (acidity/alkalinity): (1) Test range: 1～14 (2) Accuracy: 0.1 (3) Error: ±0.1

12. Salt content (conductivity): (1) Test range: 0--9999 (ppm) (2) Error: ±2%

13. Soil moisture technical parameters: Moisture unit: % (g/100g); Moisture content test range: 0-100%; Error less than 0.5%

14. Soil nitrogen, phosphorus, and potassium error ≤1%, organic matter error ≤2%

V. After-sales service

The instrument has a three-year warranty, lifetime free repair service (repair only at the cost of parts), free instrument shipping, and free training.

Lifetime free technical support for soil and fertilizer and other agricultural-related technologies!