Portable Spad-502plus Chlorophyll Meter
Portable Spad-502plus Chlorophyll Meter
SPAD-502 PLUS chlorophyll Meter can measure the relative content of chlorophyll, non-destructive to leaves. Measured datum will be displayed in the trend graph. It can be used to enhance the utilization rate of nitrogen fertilizer.
Technical parameters:
Model | Spad-502plus |
Measuring mode | 2 wavelengths optical density difference |
Measuring area | 2 mm×3 mm |
Sensor | Silicon semiconductor photodiode |
Display mode | LCD, 4 decimal places, tendency chart |
Measuring Range | -9.9 to 199.9 SPAD units |
Memory capacity | 30datum, automatically calculate and display average value |
Power | 2 AA batteries (1.5V) |
Battery life | More than 20,000 times |
Test interval | 2s |
Accuracy | Within ±1.0 SPAD units (for SPAD value between 0 and 50 under normal temperature) |
Repeatability | Within ±0.3 SPAD units (for SPAD value between 0 and 50) |
Reproducibility | Within ±0.5 SPAD units (for SPAD value between 0 and 50) |
Working environment | 0-50°C |
Other functions | alarm; calibration |
Weight | 0.8kg |
Size | 23*19*11CM |
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