SPAD-502PLUS chlorophyll analyzer imported from Japan

1、 Product Introduction
The chlorophyll meter can measure the relative chlorophyll content or "greenness" of plants in real time. This can help you understand the true nitro requirements of plants and help you understand the degree of soil nitro deficiency or whether excessive nitrogen fertilizer has been applied. You can increase the utilization rate of nitrogen fertilizer through this instrument.
2、 Product parameters
1. Model: Chlorophyll meter SPAD-502PLUS
2. Measurement object: Crop leaves
3. Measurement method: Optical density difference at 2 wavelengths
4. Measurement area: 2 × 3 mm
5. Maximum sample thickness: 1.2 mm
6. Sample insertion depth: 12 mm
(The depth adjustment device can be used to adjust the position to 0-6mm)
7. Light source: 2 LED light sources
8. Sensor: 1 SPD (silicon photodiode)
9. Display: LCD screen display, 4 decimal places, trend chart
10. Display range: -9.9-199.9 SPAD units
11. Memory: 30 sets of measurement data, capable of calculating/displaying average values
12. Power supply: 2 No. 5 batteries
13. Battery life: approximately 20000 cycles
14. Minimum measurement interval: about 2 seconds
15. Accuracy: ± 1.0 SPAD units (0.0-50.0 SPAD units, at room temperature and humidity). When exceeding 50.0 SPAD units, display '*'
16. Repeatability: within ± 0.3 SPAD units (0.0-50.0 SPAD measurement position remains unchanged)
17. Reproducibility: within ± 0.5 SPAD units (0.0-50.0 SPAD measurement position remains unchanged)
18. Temperature drift: within ± 0.04 SPAD units/° C
19. Operating temperature/humidity range: 0-50 ° C, relative humidity within 85% (35 ° C), no condensation
20. Storage temperature/humidity range: -20-55 ° C, relative humidity within 85% (35 ° C), no condensation
21. Size/Weight: 78 (width) x 164 (length) x 49 (height) mm, 200 g
22. Standard configuration: Host, verification card, lanyard, 2 No. 5 batteries, soft pack, instruction manual, etc
23. Other: Warning sound, user coefficient compensation
3、 Product Features
1. Trend chart display: The trend of multiple sets of measured data will be displayed in the chart, and those data with significant differences can be easily identified and valued for analysis.
2. Lightweight and easy to carry: The SPAD-502PLUS has a compact body and weighs only 200g, making it easy to fit into a pocket and take to the field for measurement.
3. Quick and easy measurement: Simply insert the leaves and close the measuring probe during measurement, without cutting off the leaves. This allows for monitoring of specific leaves throughout the crop growth process, resulting in more scientific analysis results.
4. Waterproof function: The SPAD-502PLUS has a waterproof function (IPX-4), which allows for outdoor measurement work even on rainy days. Do not immerse the instrument in water or clean it directly with water.
5. Low battery consumption: The SPAD-502PLUS uses LED lighting sources, which greatly reduces battery consumption. A set of 2 AA batteries can perform approximately 20000 measurements.
6. Small measurement area: The actual measurement area is only 2 x 3mm, even small blades can be measured. Moreover, the depth adjustment device can accurately position and measure even small blades.
7. High precision: High precision (± 1.0 SPAD) measurement, even crops with similar growth environments can be measured and analyzed for classification.
Data storage: SPAD-502PLUS can store up to 30 sets of measurement data in memory and can delete or restore the most recent measurement data. In addition, the instrument can automatically calculate the average value of all data for reference.
8. Reading detection: Reading detection allows customers to check whether SPAD-502PLUS is working properly on their own to ensure accurate measurement data is always obtained

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1. Trend chart display: The trend of multiple sets of measured data will be displayed in the chart, and those data with significant differences can be easily identified and valued for analysis.
2. Lightweight and easy to carry: The SPAD-502PLUS has a compact body and weighs only 200g, making it easy to fit into a pocket and take to the field for measurement.
3. Quick and easy measurement: Simply insert the leaves and close the measuring probe during measurement, without cutting off the leaves. This allows for monitoring of specific leaves throughout the crop growth process, resulting in more scientific analysis results.
4. Waterproof function: The SPAD-502PLUS has a waterproof function (IPX-4), which allows for outdoor measurement work even on rainy days. Do not immerse the instrument in water or clean it directly with water.
5. Low battery consumption: The SPAD-502PLUS uses LED lighting sources, which greatly reduces battery consumption. A set of 2 AA batteries can perform approximately 20000 measurements.
6. Small measurement area: The actual measurement area is only 2 x 3mm, even small blades can be measured. Moreover, the depth adjustment device can accurately position and measure even small blades.
7. High precision: High precision (± 1.0 SPAD) measurement, even crops with similar growth environments can be measured and analyzed for classification.
Data storage: SPAD-502PLUS can store up to 30 sets of measurement data in memory and can delete or restore the most recent measurement data. In addition, the instrument can automatically calculate the average value of all data for reference.
8. Reading detection: Reading detection allows customers to check whether SPAD-502PLUS is working properly on their own to ensure accurate measurement data is always obtained

1. Model: Chlorophyll meter SPAD-502PLUS
2. Measurement object: Crop leaves
3. Measurement method: Optical density difference at 2 wavelengths
4. Measurement area: 2 × 3 mm
5. Maximum sample thickness: 1.2 mm
6. Sample insertion depth: 12 mm
(The depth adjustment device can be used to adjust the position to 0-6mm)
7. Light source: 2 LED light sources
8. Sensor: 1 SPD (silicon photodiode)
9. Display: LCD screen display, 4 decimal places, trend chart
10. Display range: -9.9-199.9 SPAD units
11. Memory: 30 sets of measurement data, capable of calculating/displaying average values
12. Power supply: 2 No. 5 batteries
13. Battery life: approximately 20000 cycles
14. Minimum measurement interval: about 2 seconds
15. Accuracy: ± 1.0 SPAD units (0.0-50.0 SPAD units, at room temperature and humidity). When exceeding 50.0 SPAD units, display '*'
16. Repeatability: within ± 0.3 SPAD units (0.0-50.0 SPAD measurement position remains unchanged)
17. Reproducibility: within ± 0.5 SPAD units (0.0-50.0 SPAD measurement position remains unchanged)
18. Temperature drift: within ± 0.04 SPAD units/° C
19. Operating temperature/humidity range: 0-50 ° C, relative humidity within 85% (35 ° C), no condensation
20. Storage temperature/humidity range: -20-55 ° C, relative humidity within 85% (35 ° C), no condensation
21. Size/Weight: 78 (width) x 164 (length) x 49 (height) mm, 200 g
22. Standard configuration: Host, verification card, lanyard, 2 No. 5 batteries, soft pack, instruction manual, etc
23. Other: Warning sound, user coefficient compensation