Characteristics Ø Be able to save chlorophyll, nitrogen, leaf temperature, and leaf Humidity (4N) at the same time, easy to draw a graph of plant nutrient, leaf temperature etc. Provide for plant precision irrigation and fertilization Ø Nondestructive test plant quickly, not to affect plant growth Ø Manual measurement pattern Ø View past stored data, show three parameters at the same time. Ø The computer can transfer wired or wireless data so as to manage and analyze. Ø Easy to store data, directly show stored data. Show low power consumption. Testing range Chlorophyll range: 0.0-99.9SPAD Nitrogen range: 0.0-99.9mg/g Leaf humidity: 0.0-99.9RH% Leaf temperature: -10-99.9°C Testing area: 2mm*2mm Testing interval: less than 3sec Instruction Manual