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I. Instrument Function
1. Measurement: measure the transmittance of two different wavelengths of light
2. Calculation: automatically calculates the relative content value of chlorophyll (SPAD value)
3. Calibrate: the start-up calibration function
4. Display: OLED displays the measurement results
5. Software: transfer, store and delete data
6. Set: file name
Ⅱ. Technical Parameters
1. Light source: two LED light sources, red 660 nm, far-red 940 nm
2. Resolution: 0.1 (range: 0.0~99.9)
3. Repeatability: reading ± 0.5
4. Measurement accuracy: ±0.1
5. Measuring area: ø 5 mm
6. Leaf clamp depth: 0 ~ 50 mm
7. Measurement thickness: less than 5 mm leaf
8. Display: 1.3-inch 128×64 dot matrix OLED display
9. Data transmission: USB type-c USB transmission
10. Keyboard: 2×2 capacitive touch keyboard
11. Storage: Can store 4000 groups of data
12. Determination time: 1 second
13. Power supply: Rechargeable lithium-ion battery 4.2 V 1000 mAh, continuous measurement 5000 times
14. Size: 13×3×4 cm
15. Working temperature: 0~50℃; Humidity: 0~100% RH does not condensation
16. Storage temperature: -20℃~-50℃
I. Instrument Function
1. Measurement: measure the transmittance of two different wavelengths of light
2. Calculation: automatically calculates the relative content value of chlorophyll (SPAD value)
3. Calibrate: the start-up calibration function
4. Display: OLED displays the measurement results
5. Software: transfer, store and delete data
6. Set: file name
Ⅱ. Technical Parameters
1. Light source: two LED light sources, red 660 nm, far-red 940 nm
2. Resolution: 0.1 (range: 0.0~99.9)
3. Repeatability: reading ± 0.5
4. Measurement accuracy: ±0.1
5. Measuring area: ø 5 mm
6. Leaf clamp depth: 0 ~ 50 mm
7. Measurement thickness: less than 5 mm leaf
8. Display: 1.3-inch 128×64 dot matrix OLED display
9. Data transmission: USB type-c USB transmission
10. Keyboard: 2×2 capacitive touch keyboard
11. Storage: Can store 4000 groups of data
12. Determination time: 1 second
13. Power supply: Rechargeable lithium-ion battery 4.2 V 1000 mAh, continuous measurement 5000 times
14. Size: 13×3×4 cm
15. Working temperature: 0~50℃; Humidity: 0~100% RH does not condensation
16. Storage temperature: -20℃~-50℃
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