Product description:
SPAD-502 PLUS chlorophyll Meter can measure relative content of chlorophyll, non-destructive to leaves. Measured datum will be displayed in trend graph. It can be used to enhance the utilization rate of nitrogen fertilizer.
Technical parameters:
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)
Volume: 164*78*49cm (length*width*height)
Weight: 225g
Working environment: 0-50℃
Other functions: alarm; calibration
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