product introduction:
Can measure the Chlorophyll content of plants immediately . LCD show the results. Chlorophyll content and leaf nitrogen content has a very close realationship .The meter is conductive to impose reasonable nitrogen and improve the utilization of nitrogen. So this purpose can be to protect the environment ,espacially water resources, rather than using too much nitrogen fertilizers.
Specification:
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Measurement |
all kinds of plant leaves |
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Area measurement |
Diameter 10mm |
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Measuring mode |
2-wavelength concentration difference of optical methods |
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Sensors |
Silicon semiconductor photodiode |
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Measured value |
liquid-crystal Display:3-digit LCD ; measuring times: 2-digit LCD |
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Measuring Range |
less than 99.9 |
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Memory capacity |
30 datas , automatically calculate and show the average |
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ON to open the power and OFF to close the power |
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AVG (average) button |
Calculate the average of the data memory |
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DISP (display) button |
Display data storage memory of instruement |
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MEAS (measurement) button |
Press MEAS key then the instruments will be |
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measured |
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Power |
Two units of NO.5 AA alkaline manganese batteries or carbon - zinc battery |
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Battery life |
Each of two batteries can be maintained more than 20,000 operations |
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Dimensions (L X W X H) |
155mm * 70mm * 42mm |
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Weight |
320 grams (excluding batteries) |
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Precision |
plus or minus 1.0 SPAD |
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Repeat |
less than plus or minus 0.5SPAD |
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Temperature of testing |
0 - 50 degrees centigrade |
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Storage range |
-20 - 55 degrees centigrade |
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Time for testing |
< 2s |