Wiesemann & Theis GmbH

Networking, sensors and interface technology for industry, office and IT

Product overview:

Web-IO® Digital 230V

Collect, monitor and switch 230V signals in the network

Input states are collected, evaluated and, with the help of configurable actions, continuously monitored. Outputs are implemented as either normally open or change-over and can switch up to 16 A.


Web-IO 230V product video

You activate the video function using the following button, whereby you use the provider Google and (at your own risk in terms of data protection ;) share data with it.

Web-IO 230V product video

You activate the video function using the following button, whereby you use the provider Google and (at your own risk in terms of data protection ;) share data with it.

Video: Web-IO 4.0 Digital 230V thumbnail

Input states are collected, evaluated and, with the help of configurable actions, continuously monitored. Outputs are implemented as either normally open or change-over and can switch up to 16 A.


  • Ethernet switch for mains voltage
    The Web-IO outputs are switched from the web interface, by using an app, or from your own applications.
  • Detect and monitor
    The states of the in- and outputs can be queried over the network or viewed from the web interface and an app. Use freely definable actions to monitor the inputs and send emails or switch outputs.
  • Simple integration into IoT, SCADA, MES and NMS systems
    The Web-IO supports a variety of network and communication protocols. These include OPC UA, OPC DA, MQTT, Modbus/TCP, REST and SNMP.

Direct 230V switching

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