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HS-NPK-4-20MA Soil Nitrogen, Phosphorus and Potassium Sensors (4 ~ 20mA Type)

Soil Moisture

HS-NPK-4-20MA Soil Nitrogen, Phosphorus and Potassium Sensors (4 ~ 20mA Type)

Reference
HS-NPK-4-20MA

A three-in-one probe that reads the nitrogen, phosphorus and potassium content of soil, so you can judge soil fertility and assess its condition systematically. It is built to stay buried for long periods: it withstands long-term electrolysis and corrosion, is vacuum potted and fully waterproof.

Typical fields include soil NPK detection, precision agriculture, forestry, soil research, geological exploration and plant cultivation.

What it measures

  • Soil Moisture

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HS-NPK-4-20MA

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  • DC powered (default) DC 10-30V
  • Maximum power consumption ≤0.15W (@12V DC, 25℃)
  • Operating temperature 0℃~55℃
  • NPK measuring range 0-1999 mg/kg(mg/L)
  • Resolution 1 mg/kg(mg/L)
  • Precision ±2%FS

Overview

Why use it

  • Low threshold and few steps: measurements are quick, need no reagents and can be repeated without limit
  • High accuracy, fast response and good interchangeability
  • The electrode uses a specially treated alloy that stands up to strong external force and resists damage
  • Fully sealed against acid and alkali corrosion, so it can remain in the ground for long-term dynamic testing
  • The insertion-type probe delivers accurate measurement and reliable performance

Specifications

  • Default supply: DC 10-30V
  • Peak consumption: ≤0.15W (@12V DC, 25℃)
  • Works from 0℃~55℃
  • NPK parameters: range 0-1999 mg/kg(mg/L), resolution 1 mg/kg(mg/L), precision ±2%FS
  • Responds in <1S
  • IP68 protection class
  • Stainless steel probe
  • Sealed with black flame-retardant epoxy resin
  • Cable: 2 meters by default, length can be customized
  • Size: 4515123mm
  • Output: 4~20mA
  • Load capacity: ≤600Ω

Model code

  • HS-: company code
  • N: soil nitrogen content transmitter
  • P: soil phosphorus content transmitter
  • K: soil potassium content transmitter
  • I20-: 4 ~ 20mA output

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