FRITZ!Smart Thermo 302

FRITZ!Smart Thermo 302 conveniently regulates the room temperature and helps save energy. You can also use a smartphone, tablet or notebook while on the go. Operation is very convenient thanks to the sharp e-paper display and numerous features such as frost protection or boost for quick heating.

Easy to set up

The FRITZ!DECT 302 is integrated into your home network within minutes: push the DECT button on your FRITZ!Box to connect, and then mount the radiator control on your radiator – that's it! The radiator control is securely integrated into the home network via the DECT ULE standard. The group function allows several radiator controls to be controlled all together in one room and also be combined seamlessly with FRITZ!DECT 300 and 301.

Save energy

With an adjustable schedule based on your individual needs, you can define exactly when and how much heating is required. This means that you'll not only save energy, but reduce heating costs by up to 10 per cent. A new chip in the FRITZ!Smart Thermo 302 improves energy efficiency, thus ensuring a long battery life across several heating seasons.

Convenience from anywhere

Want to adjust the temperature independently of your configured schedule? No problem! You can adjust the temperature at any time, just use your FRITZ!Fon, tablet or PC. Plus, the radiator control has a button for changing the room temperature manually. When you're on the go you can use the free FRITZ!App Smart Home, which turns your smartphone into a radiator control. You can also access your settings via the internet.


  • Control temperature
  • Save heating costs
  • Ideal for the FRITZ!Box

Features

  • Weekly schedule with up to 8 switching points per day
  • Button for changing the room temperature manually
  • Function keys for antifreeze and boost (fast heating)
  • Holiday switching
  • Group switching (multiple FRITZ!Smart Thermo 302 and/or 301 are combined in a group/room)
  • Configurable temperature offset
  • Records the temperature over the last 24 hours
  • Display measured temperature and configure target temperature in the FRITZ!App Smart Home, FRITZ!Fon or the FRITZ!Box user interface
  • Push service: Receive notifications on important events in the smart home by email
  • Operation via FRITZ!App Smart Home, FRITZ!Fon or the FRITZ!Box user interface
  • High-resolution e-paper display
  • Display content can be rotated in 90 degree increments
  • Automatic open window detection with configurable sensitivity or via door/window contact
  • Keylock – separate for radiator control and remote access
  • Calcification protection
  • Frost protection function
  • Easy to set up and optimized for use with a FRITZ!Box
  • Convenient connection with the FRITZ!App Smart Home
  • Configuration over the FRITZ!Box user interface
  • Free updates with new functions and optimizations

Installation and adapter

  • Fits all common radiator systems (standard valve M 30 x 1.5 mm – Heimeier, Junkers, MNG, Braukmann, Oventrop (new), Honeywell, Landis+Gyr)
  • Adapter for Danfoss RA radiator valve included in delivery
  • You can find more information on installing on rare or very old radiators in the FRITZ! Knowledge Base

Package Contents

  • FRITZ!Smart Thermo 302
  • Adapter for Danfoss RA radiator valve
  • 3 x AA battery (in device)
  • Quick guide

System requirements

  • FRITZ!Box with DECT (except FRITZ!Box 7312/7412)
  • FRITZ!OS 6.83 and later

     

Downloads


Name change in Q1 2026 from FRITZ!DECT 302 to FRITZ!Smart Thermo 302: 

The product remains the same. The name, the packaging, the article number, and the EAN code change.

Device properties

Article number old: FRITZ!DECT 302

20003070

Article number new: FRITZ!Smart Thermo 302

20003123

Dimensions (W x H x D):

93 x 51 x 51 mm

Weight

150 g

Batteries

3 x AA/Mignon/LR6

Wireless standard

DECT ULE

Radio range

up to 40 metres indoors

Ready for use at an ambient temperature of 10 °C to 50 °C

 

Have any questions?

We're happy to answer them for you! You can find out how to get in touch with your contact person under Contact.

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