Description:

• The soil nitrogen, phosphorus, and potassium three-in-one fertility sensor is suitable for detecting the content of nitrogen, phosphorus, and potassium in the soil, and determining the fertility of the soil by detecting the content of nitrogen, phosphorus, and potassium in the soil, thereby facilitating the systematic assessment of the soil condition. Can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum potting, and completely waterproof.
• The sensor is widely used in soil nitrogen, phosphorus, potassium detection, precision agriculture, forestry, soil research, geological exploration, plant cultivation, and other fields.

Specifications:

• DC power supply (default)
• 4-20MA type: DC10-30V
• 485 type: DC5-30V
• Maximum power consumption: ≤0.15W (12VDC, 25C)
• Operating temperature; 0-55C
• Nitrogen, phosphorus and potassium parameters
• 4-20MA range 0-999mg / kg (mg / L)
• RS485 range 1-1999mg / kg (mg / L)
• Resolution: 1mg / kg (mg / L)
• Accuracy: ± 2% FS
• Response time: <1S
• Protection level: IP68
• Probe material: stainless steel
• Sealing material: black flame retardant epoxy resin
• Cable length: 2m
• Size: 45 * 15 * 123mm
• Output signal: 4-20MA / RS485 (Modbus protocol)
• Load capacity: ≤600Ω (4-20MA)