1, measurement range: chlorophyll :0.0-99.9SPAD

Nitrogen content :0.0-99.9mg/g

Leaf humidity :0.0-99.9RH% Leaf temperature :-10-99.9°C

2. Measurement accuracy: chlorophyll: within 1.0SPAD unit (at room temperature, SPAD value is 0-50)

Nitrogen content :+5%

Foliar humidity: soil 5%

Blade temperature :+0.5°C

3. Repeatability: chlorophyll: within 0.3SPAD unit (SPAD value is between 0-50) Nitrogen content :+0.5 unit

Leaf humidity :+0.5 units

Blade temperature :0.2°C

Measurement area :2mm x 2mm Blade thickness: 5mm maximum Measurement interval: less than 3 seconds Data storage capacity :32KB

Power supply :4.2V rechargeable potassium battery

Battery capacity :2000mah

Weight :200g