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Soil Moisture, Temperature & EC Sensor

Soil Moisture, Temperature & EC Sensor

Equipment options & specifications

Three-parameter soil probe for moisture, -30 to +70 °C temperature and selectable EC ranges, with 0-2 V, RS485 Modbus RTU or SDI-12 output.

Appearance, connectors and included accessories follow the configuration confirmed in your quotation.

Related application hardware: Environmental Monitoring

Specifications & version options

Parameters
Soil moisture by FDR, soil temperature and EC by AC excitation
Moisture range
0–50% or 0–100%, selected when ordering
Moisture accuracy
±2% from 0–50%; ±3% from 51–100%
Moisture resolution
0.03% from 0–50%; 1% from 51–100%
Temperature measurement
-30 to +70 °C; ±0.5 °C; 0.1 °C resolution
EC range options
0–5000, 0–10000 or 0–20000 µS/cm
Show 8 more specification rows

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Public documents describe this product family and selection options. Wiring, register maps and compliance documents must match the model and version selected for your order.

Open family selection sheet

English · Web page · printable
Current online selection reference

Open selection catalog

Agriculture & Weather Hardware Catalog
PDF · English · 447 KiB
File revision: 2026-07-22 · afc637605e57

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From a product family to your order
  1. Family page

    Compare uses, interfaces and configuration options. These are selection references.

  2. SG reference

    An SG code helps identify a sourcing option; it is not a substitute for the manufacturer model or its certificate.

  3. Written quotation

    Confirm the exact model, configuration, photograph, document revisions, accessories, price, delivery and warranty.

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Equipment in the system

System design, software integration, PLC/SCADA programming and site installation responsibilities are agreed in the written project scope.

How the model is selected

The written quotation ties the site requirement to one reviewed hardware configuration.

Site requirement

Application, medium, mounting and environment

Hardware configuration

Signal, protocol, power and enclosure

Quote confirmation

Model, quantity, certificates and delivery

remote-monitoring integration with field enclosure, gateway, power and industrial equipment

Remote integration context

Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.

Select the output and install the rods without disturbing the soil contact

Range, wiring and installation method affect whether readings can be compared over time.

  • Choose a 0-50% or 0-100% moisture range and a 0-5000, 0-10000 or 0-20000 µS/cm EC range before release.
  • Choose one output: 0-2 V, RS485 Modbus RTU or SDI-12. These are ordered alternatives, not simultaneous standard outputs.
  • The measurement-temperature range is -30 to +70 °C. The separate -40 to +80 °C value is the operating-environment limit.
Show 4 more reviewed selection notes

Model-selection reference

Agriculture & Weather Hardware Catalog

Compare equipment options in this catalog section.

Open this catalog section
Catalog section
Soil and crop parameter sensors
equipment references
30
PDF pages
15–19

SG codes for enquiry

30 sourcing references from “Soil and crop parameter sensors”. Put an SG code in the RFQ so we can match the same catalog row.

  • SG-SOIL-120
  • SG-SOIL-121
  • SG-SOIL-118
  • SG-SOIL-110
  • SG-SOIL-113
  • SG-SOIL-111
  • SG-SOIL-112
  • SG-SOIL-105
  • SG-SOIL-106
  • SG-SOIL-129
  • SG-SOIL-127
  • SG-SOIL-125
  • SG-SOIL-114
  • SG-SOIL-126
  • SG-SOIL-115
  • SG-SOIL-128
  • SG-SOIL-119
  • SG-SOIL-107
  • SG-SOIL-108
  • SG-SOIL-109
  • SG-SOIL-117
  • SG-SOIL-116
  • SG-SOIL-104
  • SG-SOIL-101
  • SG-SOIL-102
  • SG-WS-101
  • SG-WS-102
  • SG-WS-104
  • SG-WS-105
  • SG-WS-106
Open this catalog section

Continue product selection

Compare adjacent hardware families for the same monitoring path.

How to choose

  • Define the root-zone depths and number of sensing points that affect irrigation or crop decisions; one point rarely represents a whole field.
  • Select a 0-50% or 0-100% moisture range and a 0-5000, 0-10000 or 0-20000 µS/cm EC range.
  • Choose one output: 0-2 V, RS485 Modbus RTU or SDI-12. Match its supply, cable and receiving logger or RTU.
  • Install the three rods in close contact with undisturbed soil, avoid stones and do not rock the probe after insertion.
Show 2 more selection checks

Compatible with

  • RS485 Modbus RTU masters using the reviewed register map and selected device address
  • SDI-12 data loggers using the matching ordered interface
  • 0-2 V analog inputs with a compatible supply and common signal ground
  • Irrigation, greenhouse and environmental data loggers sized for the cable run and sampling interval

Typical package

  • Three-rod soil probe with the selected moisture range, EC range and output
  • Field cable length and junction protection confirmed for the installation
  • Compatible logger, RTU or protocol gateway with the required input
  • Power, surge and enclosure items selected for the site
  • Installation and comparison-reading plan for the soil type and sensing depth

Applications

agricultural monitoring station with weather sensor, solar supply, field enclosure and soil probe
Sensor set, mast, solar supply, enclosure and probe placement are selected for the crop and site.

This three-rod probe measures soil moisture, soil temperature and an in-situ electrical-conductivity signal at one sensing point. Moisture uses the FDR method and EC uses AC excitation. Select one moisture range, one EC range and one output before quotation. The field EC reading is useful for trends and comparisons under a defined soil and moisture condition; it is not, by itself, a laboratory soil-salinity result.

  • Irrigation scheduling based on moisture trends at defined root-zone depths
  • Greenhouse, orchard and field trials that compare multiple sensing points
  • Seasonal soil moisture, temperature and EC trend monitoring
  • Buried monitoring installations with a planned inspection and comparison-reading procedure
See related application hardware

What to include in your quote request

  • Root-zone depths, number and layout of sensing points
  • Soil type, expected moisture range and EC comparison objective
  • Selected moisture range, EC range and 0-2 V / RS485 / SDI-12 output
  • Logger or RTU input, device addressing, sampling interval, cable length and supply
  • Surface or buried installation method, comparison-reading plan, quantity and project stage
Request Hardware Quotation

Related selection guides

Related resources

Frequently asked questions

Which output should be selected for this soil sensor?

Use RS485 Modbus RTU for a digital multi-drop field bus, SDI-12 for a compatible environmental logger, or 0-2 V for a short analog signal path. Only one output is selected for the ordered configuration.

What are the measurement and operating temperature ranges?

The reviewed soil-temperature measurement range is -30 to +70 °C with ±0.5 °C accuracy and 0.1 °C resolution. The separate -40 to +80 °C value describes the operating environment, not the measurement range.

How should the three rods be installed?

Insert them into undisturbed soil with close contact on all sides, avoid stones and do not rock the probe. Use vertical insertion from the surface or horizontal insertion into a prepared pit wall, then document depth and orientation for repeatable comparisons.

Can the EC reading be used as a laboratory soil-salinity result?

No. It is an in-situ conductivity signal that changes with soil type, moisture, temperature and installation. It supports field trends and comparisons when the method is controlled; certified salinity results require the appropriate laboratory procedure.

How is this sensor connected to a remote monitoring system?

Connect the selected sensor output to a compatible logger or RTU, then use the RTU or gateway for 4G, Ethernet or another uplink. The register map, device address, analog scaling, cable, power and reporting interval are checked as one signal chain.

What should I provide when requesting a quote for the Soil Moisture, Temperature & EC Sensor?

Root-zone depths, number and layout of sensing points; Soil type, expected moisture range and EC comparison objective; Selected moisture range, EC range and 0-2 V / RS485 / SDI-12 output; Logger or RTU input, device addressing, sampling interval, cable length and supply

Where can I compare available model options?

Open the Agriculture & Weather Hardware Catalog linked on this page. Use it to compare equipment options before requesting a configuration.

Will it work with my existing system?

Compatibility is reviewed against your field signals, protocols and upstream platform. Typical pairings include RS485 Modbus RTU masters using the reviewed register map and selected device address, SDI-12 data loggers using the matching ordered interface, 0-2 V analog inputs with a compatible supply and common signal ground.

Product-family reference. Final ordered model and specifications are confirmed in the written quotation.