W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Product overview:

Web Thermometer

and Web sensors for °C, % RH, hPa and CO2

Web Thermometers detect, monitor and document room climate and air quality. Use the Web interface or mobile app to access current and recorded measurement values.


Web Thermometer video about the products

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.

Enter YouTube

Web Thermometer 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.

Enter YouTube

Video Web Thermometer thumbnail

Web Thermometers detect and collect various sensor values and make them available over Ethernet.


  • Fast access to current and documented measurement values
    over Web interface or app
  • Alarm messages
    for example via e-mail and SNMP trap
  • Simple integration into IoT, SCADA, MES and NMS systems
    via MQTT, Modbus/TCP, OPC and SNMP

CO2 measurement with remaining time indicator

Temperature, relative humidity, air pressure and air quality measurement

Temperature measurement

Temperature measurement incl. digital relay output

Measuring - Accessories

Additional products for visualization & networking

Software tools - free -