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							Plant Nutrient AnalyzerMeasuring range: 0.0-99.9SPAD
Leaf surface temperature: - 10-99.9 ℃
Leaf surface humidity: 0.0~99.9RH% - 
					
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							Plant Canopy Analyzer For Agricultural Production and ResearchMeasuring range: 0‐2700μmol ㎡/s
Resolution: 1 μmol ㎡/s
Relative difference:< 10% - 
					
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							SPAD-502 Handheld Chlorophyll meterMeasuring area:2 mm×3 mm
Display mode:LCD
Measuring Range:-9.9 to 199.9 SPAD units - 
					
							
							Potable Chlorophyll meterChlorophyll : 0.0~99.9SPAD
Leaf surface temperature : 10~99.9℃
Measuring area: 2mm*2mm