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SPAD-502PLUS Chlorophyll Meter

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SPAD-502PLUS Chlorophyll Meter

CATEGORY AND TAGS:
Leaf Area Meter, Plant Phyenotype Analysis

Portable Chlorophyll Meter

Model: SPAD-502PLUS

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  • Specifications

Product description

The SPAD-502Plus is a portable, non-destructive measuring device for the chlorophyll content of leaves widely used to optimise the timing and quantity of fertiliser to improve crop yields.By measuring the absorptivity of leaves in two wave range (red and near-infrared), a SPAD value is calculated to evaluate the relative content of chlorophyll in the current leaves.

Technical parameters

 
Measurement method Optical density difference at 2 wavelengths
Inductor Silicon Semiconductor Photodiode
Measured area 2mm×3mm
Sample thickness max 1.2 mm
Measuring range -9.9 to 199.9 SPAD Unit
Power supply 2 AA batteries (1.5V)
Measurement interval 2 seconds
Accuracy Within ±1.0 SPAD units (SPAD values range from 0 to 50 at room temperature)
Repeatability Within ±0.3 SPAD units (SPAD value between 0 and 50)
Reproducibility Within ±0.5 SPAD units (SPAD value between 0 and 50)
Size 164×78×49mm (L×W×H)
Operating environment 0 to 50℃
Display mode LCD screen display, 4 decimals, trend graphs
Memory capacity 30 data, automatically calculate and display the average value
Battery life More than 20000 times measurement
Weight 225 grams
Other functions Alarm function; calibration function

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