Wiesemann & Theis GmbH

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

Product overview:

Web-IO® Digital

Switching signals in the network for Industry 4.0 and IoT

The Web-IO Digital provides access to switching signals via the network. Depending on the model, signals up to 48V and other voltages are supported via coupling relays. The statuses at the inputs are recorded, evaluated and monitored using configurable actions. For example, you can send e-mail alerts or switch outputs when an input changes.


Web-IO 24V 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 24V 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 Digital 24V video

Depending on the model, the Web-IO Digital offers access to digital switching signals up to 48V via the network.


  • Versatile network remote switch
    The digital outputs can be switched over the Web, an app or from your own applications. In Box-2-Box mode in- and outputs are adjusted between two devices across different locations.
  • Detect and monitor
    Using configurable actions you monitor the in- and outputs and send e-mails when there are status changes or you can switch the outputs.
  • Simple integration into IoT, SCADA, MES and NMS systems
    via OPC UA, OPC DA, MQTT, Modbus/TCP, REST and SNMP

Direct switching and monitoring of 24V

Up to 48V potential-free switching and detection of switching states

Use up to 16 IO channels either as input or output

Web-IO Digital for Single Pair Ethernet

Detect switching signals and pulse counts over time

Complementary products for networking, monitoring and visualizing

Web-IO Accessories: Relays for 230V

Software tools


Versatile IO module for use in IoT and Industry 4.0

W&T is your partner when you’re seeking high-quality IO devices. We have the right network relay for you for use in Industry 4.0 or the IoT and provide you with the optimum IO module for professional use. You can rely on our high quality standards, which we apply to all components and which guarantee safe use. For example, you will find IO modules with 12 inputs and outputs for direct switching via the network, but you can also choose models which provide eight relays for potential-free switching.

With our IO module, you have everything in view

The requirements for a good remote IO module are strict. We are aware of this and therefore rely on modules that all support reliable recording and monitoring. This means you can easily keep an eye on the inputs and outputs or switch the outputs automatically via various industrial protocols. Our IO module offers you various options for switching the outputs. You can do this conveniently via the web, e.g. from the browser, app or via your own applications.

Rely on the expertise of W&T for your IO module

With W&T, you have a strong partner at your side if you are looking for a robust and durable IO module. We have been involved in the development and manufacture of electronic hardware for over 45 years and have been accompanied by high quality standards from the very beginning. We offer just the right IO module from our Web-IO product range. We also offer edge computers for control tasks and small firewalls for greater network security.

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