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  • New item   -70.33€Soil moisture and temperature sensor | Modbus RTU | 24VDC PoM | 7.5m cable | IP67 | Sentera Controls | SWCSM-075
    New item   -70.33€Soil moisture and temperature sensor | Modbus RTU | 24VDC PoM | 7.5m cable | IP67 | Sentera Controls | SWCSM-075 1
    New item   -70.33€Soil moisture and temperature sensor | Modbus RTU | 24VDC PoM | 7.5m cable | IP67 | Sentera Controls | SWCSM-075 2

    Soil moisture and temperature sensor | Modbus RTU | 24VDC PoM | 7.5m cable | IP67 | Sentera Controls | SWCSM-075

    Code: SWCSM-075
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  • Product description

    Soil moisture and temperature sensor | Modbus RTU | 24VDC PoM | 7.5m cable | IP67 | Sentera Controls | SWCSM-075

    The SWCSM-075 is a Sentera Controls soil water content sensor with a digital temperature sensor. It measures soil moisture and temperature and provides the results via Modbus RTU; it is powered with 24 VDC via Modbus, and a 7.5 m cable is included.

    Key idea:
    Irrigation based on actual soil moisture rather than a timer: the fast-responding sensor allows watering only when needed, and the data can be viewed remotely via SenteraWeb.
    Measures
    Soil water content and temperature
    Communication
    Modbus RTU
    Power supply
    24 VDC PoM, Imax 10 mA
    Protection / cable
    IP67, 7.5 m

    Operating principle

    The sensitive part of the sensor (103.35 × 18.75 mm) is buried in the soil, and the 7.5 m cable (extendable) is connected to the Sentera PoM network; in the manufacturer's example – via the ADPT-SWCSM adapter with a DRPS8 power module and a DIGWM internet gateway. Power supply – 24 VDC over Modbus (PoM), maximum current 10 mA.

    The factory-calibrated sensor measures soil water content, and the integrated digital sensor measures temperature; all measurements and parameters are available over Modbus RTU.

    Result – the controller, BMS or SenteraWeb receives the actual soil moisture and temperature, so irrigation can be controlled according to real demand. The IP67 enclosure is rated for operation in an environment of -30…+70 °C and 0–100 % rH.

    Benefits SWCSM-075?
    More precise irrigation and water savings – decisions are made based on the measured soil moisture.

    Technical specifications

    Product type Soil water content sensor with temperature sensor
    Manufacturer / code Sentera Controls / SWCSM-075
    Measured quantities Soil water content, temperature
    Communication Modbus RTU
    Power supply 24 VDC via Modbus (PoM), Imax 10 mA
    Calibration Factory default
    Cable 7.5 m (extendable)
    Dimensions 167.3 × 24.2 × 9.2 mm; sensitive area 103.35 × 18.75 mm
    Protection class IP67
    Operating environment -30…+70 °C, 0–100 % rH
    Weight 0.25 kg net
    Compliance EMC 2014/30/EU (EN 55022, EN 61326-1), WEEE, RoHS, EN IEC 63000

    Manufacturer documentation

    ✔ Recommended by Elektrotechnikos sprendimai

    Original manufacturer documentation – technical data, wiring diagrams and installation instructions.

    Main functions

    • Soil moisture measurement – fast response to changes in water quantity – for optimal irrigation.
    • Temperature measurement – integrated digital sensor.
    • Modbus RTU – measurements are available to a controller, BMS or SenteraWeb.
    • Factory calibration – ready to use.
    • IP67 – designed to be buried in soil.
    • Extendable cable – the standard 7.5 m cable can be extended up to the panel.
    • Low current demand – only 10 mA from the PoM line.

    Where is it used?

    • Greenhouses and horticulture
    • Smart irrigation for gardens, lawns and plantings
    • Soil moisture monitoring and control
    • Environmental monitoring projects with SenteraWeb
    • Lawn irrigation for sports fields and parks
    • Nurseries and seedling growing

    On-demand operation

    For the horticultural farm.
    Watering based on actual soil water content, not on a timer.
    For landscaping and lawn care contractors.
    Remote humidity control via SenteraWeb with the DIGWM module.
    For the agro automation integrator.
    Humidity and temperature over Modbus RTU without analog converters.

    Practical application

    If irrigation in a greenhouse is currently switched on by a timer, then once the SWCSM-075 is buried in the root zone and connected to SenteraWeb via the ADPT-SWCSM, DRPS8 and DIGWM, soil moisture and temperature are visible remotely, and the 7.5 m cable is usually enough to bring the signal to the panel.

    Application guide: how it is used in practice

    The SWCSM-075 always measures soil – the difference is where the data goes:

    Site What is connected Result Installer's note
    Greenhouse Sensor → ADPT-SWCSM → PoM line → DIGWM Humidity and temperature visible in SenteraWeb A unique Modbus address for each sensor
    Humidification controller with Modbus Sensor → Modbus RTU line The controller switches on irrigation according to moisture Check the controller's register compatibility
    Multiple zones Multiple sensors on one PoM line Each zone is irrigated according to its own needs Add up the current for the power supply

    How to choose a soil sensor

    Measured quantities / cable Recommended model
    Soil water content + temperature, 7.5 m cable, Modbus RTU SWCSM-075 (IP67) ← this model
    Rule: the sensor is connected to the Sentera PoM Modbus network (in the manufacturer's diagram – via the ADPT-SWCSM adapter); remote monitoring requires an internet gateway (e.g. DIGWM) and 24 VDC PoM power.
    When to choose another solution: for room air humidity and temperature – Sentera humidity and temperature sensors.

    Pros

    • Humidity and temperature in one
    • Modbus RTU
    • Factory calibrated
    • IP67
    • 7.5 m cable, extendable
    • Low current requirement (10 mA)

    Cons / limitations

    • No analog output – Modbus RTU only
    • Measuring ranges and accuracy are not stated in the datasheet
    • PoM power and Modbus infrastructure are required

    Safety and installation notes

    • Installation and connection are to be carried out by a qualified electrician or automation specialist with the power disconnected.
    • Power supply – only 24 VDC via Modbus (PoM).
    • Route the cable so that it is not damaged when working the soil.

    Quick selection guide

    Soil moisture
    Temperature
    Modbus RTU
    24 VDC PoM
    IP67
    7.5 m
    Suitable when you need:
    • to measure soil moisture and temperature;
    • to control humidification according to actual demand;
    • to monitor data via SenteraWeb.
    Check before use:
    • whether the system has 24 VDC PoM power and a Modbus controller or an internet gateway;
    • the cable length to the connection point;
    • whether an ADPT-SWCSM adapter is required.
    Important reminder: The SWCSM-075 has no analog output – measurements are available only via Modbus RTU.

    FAQ

    What does the sensor measure?
    The sensor measures soil water content and temperature.
    How is data transmitted?
    All measurements and parameters are transmitted via Modbus RTU.
    Can the cable be extended?
    Yes, the standard 7.5 m cable can be extended.
    How is the sensor powered?
    The sensor is powered at 24 VDC over Modbus (PoM) and draws up to 10 mA.
    Does it need calibration?
    No, the sensor is factory calibrated and ready to use.
    How can I view the data online?
    In the manufacturer's example, the sensor is connected via an ADPT-SWCSM adapter to a DRPS8 power supply and a DIGWM internet gateway, and the data is displayed in SenteraWeb.

    Soil moisture and temperature sensor | Modbus RTU | 24VDC PoM | 7.5m cable | IP67 | Sentera Controls | SWCSM-075

    Sentera SWCSM-075 – soil moisture and temperature sensor with Modbus RTU, 24 VDC PoM supply, 7.5 m cable and IP67 – for smart irrigation in greenhouses and horticulture.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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