Soil NPK (MTI.AWS.NPK) important Reminder The measurement of NPK adopts the general rapid detection method, so there are certain error, Use with caution for planting reference. The existing electronic measuring method cannot accurately measure NPK, the error is big, sensor only show trend of NPK. RS485 Modbus Soil Sensor 7 in 1 Measure Soil Moisture Temperature Humidity EC PH NPK it is for soil temperature and moisture, PH, conductivity (EC),measurement, compared with the original German high-precision sensors and soil drying method of weighing the actual calibration, high precision, fast response, stable output. By the soil salt content of small, suitable for all kinds of soil. Long-term buried in the soil, resistant to long-term electrolysis, corrosion resistance, vacuum potting, completely waterproof.
Soil NPK
Temperature
• Measuring range: -40℃-80℃
• Accuracy: ±5℃ (25℃)
• Long-term stability: ≤0.1%℃/y
• Response time: ≤15s
Humidity
• Measuring range: 0-100%RH
• Accuracy: 2% within 0-50%, 3% within 50-100%
• Long-term stability: ≤1%RH/y
• Response time: ≤4s
Conductivity
• (EC)
• Measuring range: 0-20000us/cm
• Accuracy: ±3% (0-10000 us/cm); ±5% (10000-20000 us/cm)
• Long-term stability: ≤1%uS/cm
• Response time: ≤1s PH
• Measuring range: 3-9 PH
• Accuracy: ±0.3
PH
• Long-term stability: ≤5%/year
• Response time: ≤10S
Nitrogen Phosphorus Potassium
• Measuring range: 1-1999 mg/kg(mg/L)
• Resolution：1 mg/kg(mg/L)
• Response time: ＜1S
Basic parameters
• Power supply: DC4.5-30V
• Max Power consumption: 0.5W@24V DC
• Protection class: IP68, long-term immersion in water use
• Cable length: Default is 2m (can be customized)
• Operating environment: -40℃-80℃
• Overall dimensions: 45* 15 * 123mm
• Output: RS485/4-20mA/0-5V/0-10V