Sensorex EM805-EC Sensor

The EM805 the most cost-effective Sensores solution for connecting S8000 series pH and ORP sensors to a PLC or SCADA system

This small electronic module functions as a blind transmitter with software selectable 4-20mA or MODBUS/RS485 output. No additional instrumentation is required to condition the sensor signal to be read by your PLC or SCADA. It can also be used to pair Sensorex sensors with any controller that has a 4-20mA or RS485 input card.


It can be used to pair Sensorex sensors with any controller that has a 4-20mA or RS485 input card. Easily connects to our CS300 Modular Contacting Conductivity Sensor Cartridge and S856 cable to form a complete monitoring solution.


  • Blind 4-20mA or MODBUS/RS485 modules for connecting ORP sensors to PLC or SCADA
  • Small form factor saves valuable panel space
  • Input Voltage, Modbus units: 7-40V DC
  • Input Voltage, MA units: 24V DC
  • Requires an S8000 series pH or S8000 series ORP sensor cartirdge (inline and submersion available)
  • Compatible with EA899 and EA891 series – Sensor Cartridge Housings
  • Requires S856 cable
  • Compatible with PT1000 RTD temperature compensation


Typical applications

The EM805-EC sensor is designed for water treatment environments



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Feel free to contact our team for technical assistance while on-site or as needed by calling our hotline: 01438 759 595.

Our team is available to troubleshoot via remote access or guide you through the implementation of the solution by telephone or video link. Feel confident calling us anytime, as we are here to provide the support you need.

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Sensys Ltd

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Unit 9 Pond Close
Walkern Road
United Kingdom

01438 759 595

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