1Soil fertilizer nutrient rapid analyzerfeatures：
1. Microcomputer control, digital circuit, programmed design, LCD display, dual-use of AC and DC, test data can be stored and queried, and can be tested in the field, greatly reducing operator errors and labor intensity. It can detect available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, organic matter, acidity and alkalinity in soil and fertilizers, organic fertilizers (including foliar fertilizers, water-soluble fertilizers, spray fertilizers, etc.), plants, as well as various medium and trace elements such as calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, and silicon.
2. The National Unique Computer Case/The integrated aluminum alloy chassis for pharmaceuticals is designed to be easy to carry, sturdy and durable, with matching testing methods and finished pharmaceuticals.
3. Resolution: 0.001, touch sensitive buttons, built-in high-end thermal printer, capable of printing test results.
4. Adopting high brightness LED light source and filter processing to ensure stable wavelength of the light source, silicon semiconductor is used as the signal receiving system with a lifespan of up to 100000 hours. The light source is stable, with good reproducibility and high accuracy.
5. The colorimetric groove adopts a single channel design, with no mechanical displacement or wear, and precise positioning of the optical path test to ensure the accuracy of the measurement results.
IISoil fertilizer nutrient rapid analyzerTest project:

Fertilizer nutrients: ● Nitrogen, phosphorus, and potassium in elemental fertilizers; Ammonium nitrogen, nitrate nitrogen, phosphorus, potassium, and urea in compound (mixed) Hefei and urea; Organic fertilizers contain available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, organic matter, various humic acids, trace elements (calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon), etc.

Soil nutrients: nine items including ammonium nitrogen, nitrate nitrogen, available phosphorus, available potassium, organic matter, total nitrogen, pH value, moisture, and alkali hydrolyzed nitrogen; ● Medium and trace elements: calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, etc.

Plant nutrients: ● Nitrogen, phosphorus, and potassium in the plant; Nitrates and nitrites; Calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, etc.
Nutrients of tobacco leaves: 20 items including total nitrogen, total phosphorus, total potassium, reducing sugars, water-soluble total sugars, boron, manganese, iron, copper, calcium, magnesium, etc.
IIISoil fertilizer nutrient rapid analyzerTechnical indicators:
1. Data query and printing: Test data can be stored, queried, and printed, with a built-in high-end one click thermal printer
2. Power supply: AC 220 ± 22V DC 12V+5V (can be powered by a car power supply or choose the instrument's built-in lithium battery)
2. Power: ≤ 5W
3. Range and Resolution: 0.001-9999
4. Repeatability error: ≤ 0.3% (0.003, potassium dichromate solution)
5. Instrument stability: Drift less than 0.2% within three minutes (0.002, transparency measurement).

Instrument startup preheating5After two minutes, there will be no drift in the displayed numbers (transparency measurement), and within five minutes, the drift will not exceed 0.3% (transparency measurement); The digital drift within 20 minutes shall not exceed 0.5% (for transparency measurement) and 0.001 (for absorbance measurement); The digital drift within thirty minutes shall not exceed 0.7% (for transparency measurement) and 0.002 (for absorbance measurement).
6. Linear error: ≤ 1% (0.01, 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. Wavelength range: Red light: 680 ± 2nm; Blue light: 420 ± 2nm; Green light: 510 ± 2nm; Orange light: 590 ± 4nm
9. PH Value (pH): (1) Test Range: 1-14 (2) Accuracy: 0.1 (3) Error: ± 0.1 (Extended)
10. Salt content (conductivity): (1) Test range: 0.01% to 1.00% (2) Relative error: ± 5% (extended)
11. Soil moisture technical parameters Water unit:% (g/100g); Moisture content testing range: 0-100%; Error less than 0.5%
12. Simultaneous extraction and determination of efficient N, P, and K nutrients in soil at once, and scientific guidance on fertilization amount (drafter of the industry standard for rapid testing by the Ministry of Agriculture of China)
13. Simultaneous, rapid, and accurate detection of nutrients such as nitrogen (N), phosphorus (P), and potassium (K) in fertilizers

14. Testing speed: Test a soil sample (N, P, K) for ≤ 30 minutes (including pre-treatment time, without the need for any attachments from the user)
15. Simultaneously test 8 soil samples for ≤ 1 hour (including pre-treatment time)

4、 Test speed:
Test one soil sample (N, P, K) for ≤ 30 minutes, and simultaneously test three soil samples (N, P, K) for ≤ 40 minutes;
Test one fertilizer sample (N, P, K) for ≤ 50 minutes, and simultaneously test three fertilizer samples (N, P, K) for ≤ 1.5 hours.
5、 Characteristics:
Fully functional: The testing items are the most comprehensive both domestically and internationally (all kinds of drugs can be purchased).
Fully equipped: This instrument integrates medicine, equipment, and instruments, making it easy to carry and equivalent to a small laboratory. Suitable for agricultural service departments or agricultural material distributors, fertilizer manufacturers to conduct soil testing and fertilization, and to identify the authenticity of fertilizers.
Easy to operate and fast, the finished medicine can be used immediately after opening the bottle, without the need for configuration.
VIConfiguration List (Two Aluminum Alloy Boxes):