Area unit: cm2 Resolution: 0.01cm2 Measurement error: <5% Width range: 0 ~ 150mm Length range: 0~1000mm

Area unit: cm2
Resolution: 0.01cm2
Measurement error: <2%
Data record: 5000 groups

Measurement range chlorophyll: 0.0-99 .9 SPAD
Leaf surface temperature: -10 -99.9 °C Measurement area 2mm * 2mm Measurement accuracy chlorophyll: ± 3.0 SPAD unit

Chlorophyll:0.0-99.9 SPAD 
Nitrogen content:0.0-99.9 mg / g 
Foliar humidity:0.0-99.9RH% 
Foliar temperature:-10-99.9 ° C
Measuring area:2mm * 2mm

Measuring area: 2 mm×3 mm Test interval: 2s 
Accuracy: Within ±1.0 SPAD units  
Repeatability: Within ±0.3 SPAD units 
 Reproducibility: Within ±0.5 SPAD units

Measurement range chlorophyll: 0.0-99 .9 SPAD
Leaf surface temperature: -10 -99.9 °C Measurement area 2mm * 2mm Measurement accuracy chlorophyll: ± 3.0 SPAD unit

Temperature Range: -40°C-80°C
Humidity Range: 0-100%RH 
Illuminaiton Range: 0-200000
LUXRainfall Range: 0-4mm/min 
Wind Speed Range: 0-45m/s

Range of measurement: 0-2700μmol m-2s-1 Resolution: 1μmol m-2s-1 Response time: 10μs Time interval for auto data acquisition: 1-99 min Times of auto data acquisition: 1-99

CO2:0-2000PPm 
air temperature:0-60 ° C 
blade temperature:0-60 ° C 
leaf chamber humidity:0-100% 
Intercellular CO2:0-2000PPm 
PAR:0-2850μmolm-2•s-1

Measurement:air temperature,air humidity,flow rate,atmospheric pressure
Calculation:transpiration rate, stomatal conductance and stomatal impedance.
Humidity range:0-100% RH