Product description
Spad 502 Plus Chlorophyll Meter can quickly measure chlorophyll content or “greenness” of different plants to reduce the risk of yield-limiting deficiencies or costly overfertilizing. This Chlorophyll Meter quantifies small changes or trends in plant health long before being visible to the human eye. Non-invasive measurement.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)
Working environment: 0-50°C
Other functions: alarm; calibration
Weight: 255G
Size: 164*78*49CM
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