- Testing objects: Nitrogen, chlorophyll, leaf temperature, and leaf humidity(‐4N)
- Testing area: 2mm*2mm
- Manual measurement pattern
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- Soil Nutrient Stability: Absorbency of light drift＜0.003
- Soil Nutrient Repeatability: Absorbency of light＜0.005
- pH Testing range: 1-14
- pH Error: ±0.1
- Soil moisture Accuracy: ±2%
- Soil moisture Moisture content rate testing range: 0-100%
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