Model:
WDC-4-SB
Special feature:
★ LoRa wireless transmission distance is long; up to 1-5 kilometers.
★ Low power consumption. The 3.6V battery life is up to 2 years.
★ The steel needle is made of high-quality materials and can withstand long-term electrolysis and acid resistance testing.
★ The electrodes are made of specially treated alloy materials with high measurement accuracy and stable performance.
★ IP68 protection level, safer to use.
★ Support remote OTA upgrade.
Product design complies with the following relevant national standards::
1. GB/T 2421.1-2008 Environmental testing of electrical and electronic products.
2. GB/T 4798.10-2006 Application environmental conditions for electrical and electronic products.
Soil nutrient level mg/kg:
| Grade | nitrogen | phosphorus | Potassium | Fertility |
|---|---|---|---|---|
| Level 1 | 150 | 40 | 200 | fertile |
| Level 2 | 120-150 | 20-40 | 150-200 | Above average |
| Level 3 | 90-120 | 10-20 | 100-150 | Medium |
| Level 4 | 60-90 | 5-10 | 50-100 | Barren |
| Parameter | Specific performance |
|---|---|
| Measuring range | 0-1999mg/kg |
| Measurement accuracy | ±2%F.S |
| Resolution | 1mg/kg |
| Response time | 1-10s, soil temperature 25C/second |
| Working temperature | 5-45℃ |
| Operating temperature | 5%-95% |
