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EC, TDS and Salinity Transmitter Technology


DAYTECH's range of EC (Electrical Conductivity), TDS (Total Dissolved Solids) and Salinity Analytical Transmitter technology offers robust, precise and premium solutions for process control and environmental water quality monitoring applications. Combine with the ACORN Modular IoT Mesh/Star Network Platform for a powerful and integrated remote monitoring and control IoT solution, complete with datalogging, cloud connectivity and optional smartphone app custom development.

Process Analytical Digital RS485 Sensors
ACORN SmartNode 4.png
EC-1000 Digital EC Transmitter

Digital EC/TDS/Salinity transmitter, with RS485 MODBUS, 0-5V, 0-10V or 4-20mA Output options, for analysis of process and environmental water.

ACORN IoT-SmartNode
Wireless / Battery / Solar

All In One Industrial IoT Wireless Sensor Network SmartNode - Zigbee Mesh, RS485, 3G/4G


  • Manufacturing, mining, agriculture, irrigation, chemical process, food and beverage, water process or environmental water quality applications;

  • Conductivity Measuring Range: 1.0 μS/cm~ 20.00 mS/cm

  • Conductivity Resolution: 0.1 μS/cm~ 0.01 mS/cm

  • Cell Constant K=1.0

  • Reference Temperature: 15.0 ~35.0 °C

  • Temperature Coefficient: 0.00 %~10.00 %

  • TDS Measuring Range: 1.0 ppm~ 10.00 ppt

  • TDS Resolution: 0.1 ppm~ 0.01 ppt

  • TDS factor: 0.40~ 1.0

  • Salinity Measuring Range: 1.0 mg/L~ 10.0 g/L

  • Pressure: 0-10 bar (@50C)

  • Polypropylene (PP) body, NPT 3/4" thread

  • IP68 - fully submersible or process connected.

  • Length: 160mm Φ30mm

  • Output: RS-485 Modbus RTU / 0-5V / 0-10V / 4-20mA

  • Power: DC-12V

  • 5m connecting cable with labelled flying leads

  • Optional battery and wireless IoT monitoring and control with the DAYTECH ACORN IoT Node, sold separately.


  • Combine the EC-1000 digital transmitter with the DAYTECH's IoT-SmartNode for remote wireless monitoring and control of many processes and environmental applications. You can monitor an individual process for chemical or fertiliser dosing, or use the system for continuous water quality analysis, with stand alone battery powered 3G/4G or Wifi.

  • With the Zigbee mesh network, you can integrate a whole network of sensors, for more reliable and secure wireless monitoring and control.

  • Direct integration to pumps and valve or other actuators for control via wired relay/PNP/NPN or wireless control.

  • Integration with a wide variety of control systems, connected directly to IO or remote battery powered and wirelessly using Zigbee Mesh Networks or LoRa long range star networks! 

  • For application advice and assistance, please contact our engineering applications specialists

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