SOIL NPK Sensor RS485SKU 10020-21Save 25%

Display Board & LED

SOIL NPK Sensor RS485

₹2,999₹3,999

01 — About

What it does

The Soil NPK Sensor RS485 is a high-precision agricultural sensor designed to measure the concentration of essential soil nutrients: Nitrogen (N), Phosphorus (P), and Potassium (K). Featuring an industrial-grade RS485 interface with Modbus-RTU protocol, the sensor enables real-time monitoring of soil fertility for precision agriculture, smart irrigation, and greenhouse automation systems.

Key features

  • Simultaneous measurement of Nitrogen (N), Phosphorus (P), and Potassium (K)
  • Industrial RS485 communication interface
  • Supports Modbus-RTU communication protocol
  • High measurement accuracy and stability
  • IP68 waterproof and dustproof enclosure
  • Corrosion-resistant probe for long service life
  • Suitable for long-distance data transmission
  • Low power consumption
  • Easy integration with PLCs, Arduino, ESP32, and industrial controllers

Good to know

  • Designed for insertion into soil for nutrient analysis.
  • Use a regulated DC power supply between 9V and 30V.
  • Communication is based on Modbus RTU over RS485 interface.
  • Avoid excessive mechanical impact on the probe.
  • Clean the sensor probe after prolonged use to maintain accuracy.
  • Calibration may be required depending on soil type and application.

02 — Datasheet

Specifications

13
Measurement Parameters
Nitrogen (N), Phosphorus (P), Potassium (K)
Measurement Range
1 – 1999 mg/kg (ppm)
Measurement Accuracy
±2% F.S.
Resolution
1 mg/kg (ppm)
Communication Interface
RS485
Protocol
Modbus RTU
Operating Voltage
9V – 30V DC
Power Consumption
< 0.15W
Response Time
< 1 second
Protection Rating
IP68
Operating Temperature
5°C to 45°C
Probe Material
Corrosion-resistant stainless steel
Cable Length
Standard 2m (extendable)