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RS485 soil EC sensor for irrigation system

The ZONEWU RS485 integrated three-in-one soil sensor (temperature, humidity, EC) combines soil moisture, temperature, and electrical conductivity detection in a single streamlined device. It offers practical advantages like easy portability for flexible deployment, reliable sealing to resist moisture, dust, and corrosion, and high measurement accuracy for consistent, trustworthy data.
Ideal for professionals needing comprehensive soil parameter monitoring, it suits agriculture (optimizing irrigation/fertilization), horticulture, environmental monitoring, and scientific research. Eliminating the need for separate sensors, it simplifies installation and operation while providing a holistic view of soil conditions to support informed decision-making.
  • Model No.:

    LW501B-EC(RS485)
  • Use:

    Detect soil EC parameters
  • Power Supply:

    5-30V DC
  • Certificates:

    CE,ROHS,FCC,ISO and 11 patents certifications
  • Customized Support:

    OEM, ODM
  • Warranty:

    1 Year
  • Product Detail

RS485 soil EC sensor for irrigation system

 

High-Precision Frequency Domain Soil Moisture Sensor:

The soil moisture and EC (Electrical Conductivity) component is a high-precision, high-sensitivity sensor crafted with high-frequency electronic technology, based on the frequency domain reflectometry (FDR) principle. By measuring the soil dielectric constant, it directly and stably captures the true volumetric moisture content across all soil types—an approach widely recognized as the global gold standard for soil moisture and EC measurement. The sensor integrates a power module, temperature sensing module, transmission module, temperature compensation module, and data processing module, delivering exceptional environmental adaptability for reliable EC and moisture detection in diverse scenarios.


Technical Features of Soil EC Sensor:

·  High Precision & Rapid Response: 

Delivers accurate measurement results and real-time data updates with fast responsiveness to soil conductivity changes.

·  IP68 Sealed & Durable: 

Features top-tier waterproof sealing, corrosion-resistant, suitable for direct burial in soil and reliable long-term use in harsh outdoor conditions.

·  Compact & Easy Installation: 

Lightweight design enables hassle-free setup in tight or remote monitoring locations with minimal soil disturbance.

·  Strong Anti-Interference & Stable Performance: 

Adopts electrical isolation design to resist complex on-site interference, ensuring consistent and reliable operation.

·  Versatile & Efficient: 

Offers seamless interchangeability for easy system integration, and ultra-efficient data transmission, adaptable to various soil monitoring scenarios.



RS485 Soil EC Sensor Specification:


Work Environment
Temperature:-30℃ to 70℃; Humidity:≤95%RH
Measuring Range
Humidity: 0%RH-100%RH
0-50% inner soil 2%, 50-100% inner soil 3%
(brown soil, 60%, 25℃)
Temperature:-40℃~+80℃, ±0.5℃(25℃)
EC: 0-20000us/cm
Within the range of 0-10000 US/cm, it is ±3%; Within the range of 10000-20000us/cm, it is ±55. (Brown soil, 60%RH, 25℃)
EC Sensor External Dimensions
45*15*123mm
Steel Needle Material
Stainless Steel
Sealing Material
Black flame retardant epoxy resin
Transmitter Line Length
Default 2m (other lengths can be customized)


Packaging:


Single gross weight:  0.800 KG

Single package size: 23X20X5 cm




Product Applications: 


1.High precision: accurately measure the slightest changes in soil Temperature and Humidity, with a wide measurement range.

 

2.It meets the requirements of long-term agricultural monitoring and reduces operational and maintenance costs associated with frequent power replacement.

 

3.Features battery-powered design, compatible with outdoor deployment scenarios without external power sources. 

 

4.Low - power wireless transmission: use technology for long - range, low - power data transmission, reducing energy consumption.

 

5.Strong environmental adaptability: withstand harsh outdoor conditions such as rain, dust, and extreme temperatures. 



Product Description: 






 

Application


This sensor is ideal for scenarios requiring soil EC measurement, including:

  • Water-saving agricultural irrigation systems
  • Meteorological & environmental monitoring projects
  • Greenhouse, flower, and vegetable cultivation
  • Grassland and pasture management
  • Rapid soil testing
  • Plant breeding & cultivation
  • Scientific research experiments


 






Why Our RS485 Soil EC (Temp & Humidity) Sensor Solves Your Pain Points:


1.Frustrated with unreliable EC data on large farms? 

Our RS485 wired transmission delivers stable EC, temperature, and humidity data over long distances—say goodbye to lost readings in vineyards and crop fields.


2.Tired of incompatible industrial systems? 

With Modbus RTU support, it works seamlessly with your existing PLC/SCADA setups—no extra costs for integrating EC monitoring.


3.Worried about wiring costs derailing your large-scale EC tracking budget? 

Daisy-chain multiple sensors on a single RS485 bus—significantly cut wiring labor and material costs for multi-point EC testing.


4.Struggling with power mismatches at EC monitoring sites? 

Its wide voltage range fits both industrial power supplies and battery setups—one versatile sensor for both remote EC tracking and greenhouse use.


5.Fed up with sensors failing mid-measurement in harsh outdoor conditions? 

IP68 waterproof rating plus noise-resistant RS485 signals ensure reliable EC data, even in extreme weather like droughts or heavy rain.


6.Annoyed by complicated wiring for on-site EC setups? 

Standard screw-terminal connections enable fast, tool-free wiring—get each EC sensor up and running quickly, no specialized skills required.



Production Process:



factory of water ec sensor manufacturer



Why choose us:


1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate. 
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.

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