Wiesemann & Theis GmbH

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

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Firmware:

Web Thermometer Relay

#57126

Current firmware
Date Changes and comments Revision
July 29, 2026
  • TLS - Certificate management revamped
  • TLS - Added consistency check for TLS keys
  • System startup stabilized
Once you have updated to this firmware version, you will no longer be able to downgrade to versions earlier than v1.77.
Rolling back to earlier firmware versions after this update may cause problems and is not recommended.
 1.82
UHD download
SHA-256 hash:
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Older firmware
Date Changes and comments Revision
June 9, 2026
  • Internal timing optimized
  • Internal memory handling optimized
  • Watchdog monitoring optimized
  • Connection management optimized
 1.81
on request
April 24, 2026
  • SSL/TLS - TLS stack updated
  • SSL/TLS - Certificate management revamped
  • SYSLOG - Added support for sending debug information
  • OPC UA - Library update
  • Fixed an error in the HTTP request alert/notification
 1.80
on request
December 12, 2025
  • Certificate handling optimized during upload
 1.79
on request
November 14, 2025
  • initial firmware
 1.78
on request
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