Product introduction: Using imported large-scale integrated circuit, rotating color darkbox design (patent), testing four samples at the same time, large screen LCD Chinese backlight display guide operation process;The main machine is equipped with a mini printer.Nitrogen, phosphorus, potassium, organic matter, humic acid, salt content, ph (quantitative), environment (soil, water, air) temperature in soil, fertilizer, plant can be tested quickly.Instrument memory more than 60 crops growth and development of the required nutrients;According to the user needs to output instructions on the amount of fertilizer and print out.Spray - plastic steel shell, strong, beautiful, durable. Main technical indicators: Technical indexes of nutrient measurement: (1) Stability: the drift of A value (absorbance) within 3 minutes is less than 0.003 (2) Repeatability: A value (absorbance) is less than 0.005 (3) Linear error: less than 3.0% (4) Spiritual sensitivity: red light > 4.5 x 10-5 blue light > 3.17 x 10-3 (5) Wavelength range: red light 620 + 8nm blue light 440 + 8nm (6) Shock resistance: qualified (note: technical indicators are higher than national standards) PH value (pH) measurement technical indicators: (1) Test range: 1 ~ 14 (2) Error: plus or minus 0.1 Technical indicators of salinity (conductance) measurement: (1) Test range: 0.01% ~ 1.00% (2) Relative error: plus or minus 5% Power supply for the instrument: (1) Ac city electricity: 180V ~ 240V, 50 hz (2) Direct current: 18V, 5W.
Product introduction: Using imported large-scale integrated circuit, rotating color darkbox design (patent), testing four samples at the same time, large screen LCD Chinese backlight display guide operation process;The main machine is equipped with a mini printer.Nitrogen, phosphorus, potassium, organic matter, humic acid, salt content, ph (quantitative), environment (soil, water, air) temperature in soil, fertilizer, plant can be tested quickly.Instrument memory more than 60 crops growth and development of the required nutrients;According to the user needs to output instructions on the amount of fertilizer and print out.Spray - plastic steel shell, strong, beautiful, durable.
