Range and resolution 0.001 ~ 9999

The drift within 3 minutes of stability is less than 0.003

The linear error is less than 0.003

The repeatability error is less than 0.005

Sensitivity red light > 4.5 x 10-5 blue light > 3.17 x 10-3 green light > 2.35 x 10-3

Orange light acuity 2.13 x 10-3

Wavelength range: red light: 680 plus or minus 2nm; Blue ray: 420 + / - 2nm; Green light: 510 + / - 2nm;

Orange light: 590 + 2 nm

PH value (PH) measurement technical parameter A, test range: 1 ~ 14b, error: + / - 0.1

Dimensions (H * W * D) 354mm * 296mm * 135mm

Simultaneous leaching of nitrogen, phosphorus and potassium in soil can be completed within 3 minutes of combined leaching

The test speed of a soil sample (N, P, K) is less than or equal to 30 minutes, and 5 soil samples are less than or equal to 50 minutes

Good earthquake resistance

Power A, ac: 180V ~ 240V, 50hz B, dc: 12V, 5W (car)

Work environment 5 ℃ to 40 ℃, humidity<85%, room temperature, dry and ventilated, acid alkali environment is strictly prohibited