| Testing objects | nitrogen, chlorophyll, leaf temperature, and leaf humidity(-4N). |
| 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 |
| Stored data capacity | 999 groups |
| Power supply | 4.2V 2000mah Recharge Li‐ion battery |
| Chlorophyll accuracy | ±1SPAD |
| Nitrogen accuracy | ±5% |
| Leaf humidity accuracy | ± 0.5% |
| Leaf temperature accuracy | ± 0.5°C |