Technical specifications


  • Weekly schedule with up to 8 switching points a day
  • Setting wheel for changing the room temperature manually
  • Vacation switching
  • Group switching (multiple FRITZ!DECT 301 are combined in a group/room)
  • Configurable temperature offset
  • Recording of the temperature over the last 24 hours
  • Display of the measured temperatures and configuration of the target temperature via FRITZ!Fon, the user interface of the FRITZ!Box or FRITZ!App Smart Home
  • Push service informs about loss of radio connection or low battery
  • Intuitive setup in the browser using the FRITZ!Box user interface
  • Control via PC, notebook, smartphone or tablet – even remotely over the Internet and the FRITZ!App Smart Home
  • Display content is rotatable in 90 degree steps
  • Configurable open window detection
  • Keylock – separately for radiator control and remote access
  • Limescale protection
  • Antifreeze function
  • Secure integration in the home network via DECT ULE
  • New features through automatic update function

Device properties

  • Dimensions (W x H x D): 53 x 87 x 52 mm
  • Weight: 143 g
  • Batteries: 2 x AA/Mignon/LR6
  • Radio standard: DECT ULE
  • Radio range: up to 40 meters indoors
  • Ready for operation in an ambient temperature between 0°C and 50°C


  • Fits for all common heating systems (standard valve M30x1, 5mm - Heimeier, Junkers, MNG, Braukmann, Oventrop new, Honeywall, Landys+Gyr)
  • Adapter for Danfoss RA valve is part of the package contents
  • For more information on installing FRITZ!DECT 301 on older or rare heaters, please refer to the AVM Knowledge Base

Package contents

  • FRITZ!DECT 301
  • Adapter for Danfoss RA
  • Batteries (2 x AA)
  • Quick guide

System requirements

  • FRITZ!Box with DECT
    (except FRITZ!Box 7412)
  • FRITZ!OS 6.83 or later

Article number

  • 20002822