1.Soil nutrient speedometer product introduction:

Soil nutrient speedometer can quickly detect ammonium nitrogen, available phosphorus, available potassium, organic matter, pH, salt and so on in soil and fertilizer.Complete supporting facilities: The instrument integrates medicine, equipment and instrument in one, which is easy to carry and is equivalent to a small mobile laboratory. It does not require users to prepare accessories and can also be used for flexible field mobile testing. It is suitable for agricultural service departments or agricultural material dealers, colleges and universities, scientific research institutes, cooperatives, fertilizer manufacturers, large growers to test soil and fertilizer, identify the authenticity of fertilizers, and environmental protection testing applications.

Complete testing functions: The testing items are comprehensive, including domestic and foreign ones. In addition to the standard reagents, other types of reagents can be purchased as an option.

The operation is simple and fast, and it comes with a complete set of accessories and finished medicines that can be used right out of the bottle without the need for configuration.

Reliable performance: The working stability is 6 times better than the national standard JJG179-90 index, and the repeatability reaches the index level of grating spectrophotometer.

2. Soil nutrient speedometer has many functions and complete test items:

1. Soil nutrients: ● Soil ammonium nitrogen, soil available phosphorus, soil available potassium, soil nitrate nitrogen, soil hydrolyzed nitrogen, soil total nitrogen, soil total phosphorus, soil total potassium, soil organic matter (Qiu Lin method), soil organic matter (extraction method), pH value, salt content, water. ● Trace elements in soil: soil calcium, soil magnesium, soil sulfur, soil silicon, soil boron, soil iron, soil copper, soil manganese, soil zinc, soil chlorine; ● Soil heavy metals: soil lead, soil arsenic, soil cadmium, soil chromium, soil mercury.

2. Environmental factors: ●Soil volume moisture content, soil temperature, soil conductivity, air temperature, air humidity, dew point, atmospheric pressure, light intensity, carbon dioxide.

3. Fertilizer nutrients: ● Single element fertilizer: ammonium nitrogen in nitrogen fertilizer, nitrate nitrogen in fertilizer, urea nitrogen, biuret, phosphorus in phosphate fertilizer, water-soluble phosphorus in phosphate fertilizer, potassium in potash fertilizer; ● Total nitrogen in compound fertilizer, total phosphorus in compound fertilizer, total potassium in compound fertilizer; ● Total nitrogen in organic fertilizer, total phosphorus in organic fertilizer, total potassium in organic fertilizer, nitrate nitrogen in organic fertilizer, quick-acting phosphorus in organic fertilizer, quick-acting potassium in organic fertilizer, acid-soluble nitrogen in organic fertilizer, organic matter; ● Water-soluble humic acid (weathered coal), water-soluble humic acid (lignite), water-soluble humic acid ( Peat), free humic acid (weathered coal), free humic acid (lignite), free humic acid (peat); ● Water-soluble fertilizer with total nitrogen, water-soluble fertilizer with total phosphorus, water-soluble fertilizer with total potassium; ● Foliar fertilizer with total nitrogen, foliar fertilizer with total phosphorus, foliar fertilizer with total potassium; ● Various fertilizer trace elements: fertilizer calcium, fertilizer magnesium, fertilizer sulfur, fertilizer silicon, fertilizer boron, fertilizer iron, fertilizer copper, fertilizer manganese, fertilizer zinc, fertilizer chlorine; ● Fertilizer heavy metals: fertilizer lead, fertilizer arsenic, fertilizer cadmium, fertilizer chromium, fertilizer mercury.

4. Nutrition of fresh crops: ● Crop nitrate nitrogen, crop ammonium nitrogen, crop phosphorus, crop potassium; ● Trace elements in crops: crop calcium, crop magnesium, crop sulfur, crop silicon, crop boron, crop iron, crop copper, crop manganese, crop zinc, crop chlorine; ● Nitrate and nitrite in crops.

5. Dry plant nutrition: ● Total nitrogen, total phosphorus, total potassium

6. Tobacco leaf nutrition: ●Total nitrogen, total phosphorus, total potassium, reducing sugar, total water-soluble sugar, boron, manganese, iron, copper, calcium, magnesium and other 20 items.

7. Food (fruits, vegetables, etc.): Nitrates, nitrites, heavy metals (lead, chromium, cadmium, arsenic, mercury), etc.

8. Water quality: ammonium nitrogen, phosphorus in water, potassium in water, nitrate, nitrite, hardness, PH, iron, copper, manganese, zinc, boron, chlorine, sulfur, silicon, molybdenum, etc.

3. Soil nutrient speedometer test efficiency:

One-time simultaneous extraction and determination of multiple nutrients such as fast-acting N, P, K, etc. in soil (drafter of the Ministry of Agriculture's rapid measurement industry standard).

Simultaneous, rapid and accurate detection of nutrients such as nitrogen (N), phosphorus (P) and potassium (K) in fertilizers.

Test speed: Normal proficiency level:

It takes 20 minutes to test three items (N, P, K) of a soil sample (including the time for reagent preparation and soil sample pretreatment), ≤40 minutes to test three soil samples (N, P, K) at the same time, and ≤1 hour to test 8 soil samples at the same time.

Testing one fertilizer sample (N, P, K) ≤50 minutes, testing three fertilizer samples (N, P, K) simultaneously ≤1.5 hours.

4. Soil nutrient speedometer test error:

The error of soil nitrogen, phosphorus and potassium is ≤1%, the error of organic matter is ≤2%, and the relative error of trace elements is ≤5%; the error of fertilizer single item is ≤0.5%, and the error of nitrogen, phosphorus and potassium three items is ≤1%;

The relative error of heavy metals is less than or equal to 5%.

5. Soil nutrient speedometer features:

1. Android smart operating system, the main control chip adopts ARM Cortex-A7, RK3288/4 core processor, the main frequency is 1.88Ghz, the operation speed is faster and the stability is stronger.

2.★Adopting precision rotating colorimetric cell design, the consistency of light source is more precise, ensuring detection accuracy.

3. ★12 rotating detection channels can quickly detect 12 samples at a time, greatly improving detection efficiency and reducing detection costs.

4. Adopt high-precision filter technology independent patent analysis method (patent number: ZL 2018 2 1777724.7), authoritative certification.

5. Built-in calibration function, intelligent constant current and voltage regulation, and automatic light intensity calibration during the detection process ensure detection accuracy.

6. Built-in sensor aviation interface, easy to plug and unplug, equipped with FDR sensor and environmental multi-factor sensor.

7.★FDR sensor is an integrated soil three-parameter sensor that can measure soil moisture content, soil ambient temperature, and soil conductivity (salinity) simultaneously, which is convenient and fast.

8. The environmental multi-factor sensor is a 6-factor integrated sensor that can simultaneously measure air temperature, air humidity, dew point, atmospheric pressure, light intensity, and carbon dioxide.

9. The instrument is equipped with WiFi wireless upload, 4G network transmission, and GPRS wireless remote transmission to quickly upload data.

10. Equipped with a smart cloud agriculture platform, after the instrument is connected to the wireless network, the detection data can be uploaded wirelessly selectively or in batches, which is convenient for users to manage data and conduct long-term analysis.

11. The instrument is equipped with USB interface and Ethernet interface, built-in large-capacity memory, and data can be copied with a USB flash drive at any time.

12. You can use your mobile phone to log in to the cloud platform at any time to view historical data online

13. The built-in crop expert fertilization system can calculate the recommended fertilizer amount for the target yield of more than 100 kinds of national agricultural cash crops, fruit trees, etc., and scientifically guide agricultural production based on the fertilization formula. The soil test formula fertilization results can be printed, and the printed content includes: crop type, fertilizer type, target yield, total demand, and recommended fertilization plan.

14. Built-in plant nutrition diagnosis standard atlas, based on the pictures of nutritional deficiencies of various crops, leaf comparison is carried out to diagnose abundance or deficiency.

15. 4 wavelengths professionally test cold light sources (red, blue, green, orange), the wavelength of the light source is stable, there is no temperature drift in the long-term continuous working light source, the life span is up to 100,000 hours, with good reproducibility and high accuracy.

16. The colorimetric cell uses a standard 1cm colorimetric dish, which has no mechanical displacement and wear. The optical path test positioning is precise and effectively shields external light interference, ensuring that the test results are better than national standards.

17. The instrument system is equipped with sample pre-treatment operation videos. Various sample detection methods can be viewed by clicking on the video module. The testers do not need to study the instructions by themselves. The guidance and teaching are convenient and fast, which is convenient for novices to operate quickly.

18. Built-in new generation high-speed thermal printer (no ribbon required), the printed content includes: testing unit, testing personnel, testing items, channel number, absorbance, nutrient content (mg/kg), testing time, QR code and other information

19. Highly sensitive 7-inch true color touch screen adopts more efficient and user-friendly operation, high-definition and highly interactive display, which greatly reduces the cumbersome operation and errors of traditional instruments.

20. Built-in clock function, convenient for operation time recording and long-term historical tracing.

21. You can set up multiple account and password logins, efficient UI interaction interface, different users can freely add and edit detection information, which can be saved and used for a long time.

22. GPS function: can record longitude and latitude locations during field operations to meet special user needs.

23. Built-in low voltage prompt function can clearly indicate the power level during detection to avoid test data deviation. It also has power-off protection function, which automatically saves data when power is off to prevent data loss.

24. AC/DC dual power supply mode, built-in large-capacity rechargeable lithium battery, can work continuously for more than 10 hours when fully charged, and can also be connected to an external vehicle power supply for storage.

25. The instrument has the function of switching between Chinese and English, which can meet export requirements.

26. High-strength PVC engineering plastic suitcase design, sturdy, durable and easy to carry.

6. Soil nutrient speedometer technical parameters:

1. Power supply: AC 220±22V DC 12V+5V (built-in lithium battery or vehicle power supply)

2. Power: ≤5W

3. Range and resolution: 0.001-9999

4. Repeatability error: ≤0.02% (0.0002, potassium dichromate solution)

5. Instrument stability: No digital drift within one hour (transmittance measurement); digital drift does not exceed 0.3% (0.003, transmittance measurement), 0.001 (absorbance measurement) within two hours.

6. Linear 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. Wavelength range: Red light: 680±2nm; Blue light: 420±2nm; Green light: 510±2nm; Orange light: 590±4nm

9. PH value (acidity): (1) Test range: 1~14 (2) Accuracy: 0.01 (3) Error: ±0.1

10. Salt content: (1) Test range: 0.01% to 1.00% (2) Relative error: ±5%

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

12. Soil temperature: Range: -40-120℃; Measurement accuracy: ±0.2℃; Resolution: ±0.1℃

13. Soil conductivity: Range: 0-20ms; Measurement accuracy: ±2%; Resolution: ±0..1ms

14. Temperature range: -40℃~+125℃; accuracy: ±0.3℃

15. Humidity range: 0%HR-100%HR; accuracy: ±3%HR

16. Dew point range: -20~+50℃; accuracy: ±0.5℃

17. Air pressure range: 300~110kPa (9000m~-500m above sea level); accuracy: 0.06hPa (0.5m)

18. Light range: 0-200000Lux; accuracy: 0.054Lux

19.CO2 range: 0-5000PPM; accuracy: 50PPM

20. Earthquake resistance level: IP65

21. Instrument size: 48×34.5×22cm

22. Net weight of the host: 5.2kg

7. Soil nutrient speedometer after-sales service:

The whole instrument is under warranty for five years, with free lifetime maintenance service, free instrument delivery and free training.

Provide free lifelong support for agricultural related technologies such as soil and fertilizer!

8. Soil nutrient speedometer configuration list:

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