Best Comet Dect 2025

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Last Updated - 26.07.2025

Best Choice

01

Eurotronic

Eurotronic Comet WiFi Radiator Thermostat Set - Smart Home Heating Control for 3 Radiators Includes Free App and Valve Adapter Voucher Compatible with Any WLAN Router (2.4 GHz)

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Tips for setup: the thermostat reset button is located in the battery compartment to the right of the lettering Reset. The button can be easily pressed with a ballpoint pen.
Tips for setup: When setting up app, disable mobile data on your smartphone and enable access to location (GPS).
Tips for setup: If you have increased the font size of your smartphone, please set the font back to the default value so that all controls of the app are displayed correctly.
The electronic radiator controller with illuminated LED display and touch operation offers you many intelligent functions for smooth use: app control, automatic window open detection, child lock, holiday mode, frost and limescale protection function as well as an automatic summer/winter time change.
Save up to 30% on heating costs this winter with the modern WLAN radiator thermostat Comet WiFi and experience comfortable heating control via app. You do not need additional centres or gateways.
Quality made in Germany - The Eurotronic Comet WiFi radiator thermostats are produced in Germany and offer high quality at the best price.
Mount the digital thermostat to your radiator valve in no time at all. The high-quality metal nut of the thermostat head fits all standard valves with the thread dimension M30 x 1.5 mm. Special adapters compatible with Danfoss RA, RAV and RAVL valves are included. If the thermostat still does not fit, please request free adapters for your valve manufacturer from contronics.
If you have any questions or problems when setting up the thermostats, please contact contronics customer service.
Easily create individual time profiles conveniently via your smartphone or tablet. The Eurotronic Smart Living app is available for free in the Apple App Store or Google Play. Instructions specially made for this solution are included with the package and help you set up.

129,95 €
02

ET - EUROTRONIC Technology GmbH

Eurotronic Comet ZZ eco: 3x Smart ZigBee Radiator Thermostat ZigBee Wireless Heating Control Set Including Free App and Gateway

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With practical comfort functions: the radiator controller impresses with a variety of smart functions: app control, ventilation detection, child lock and holiday function. Thanks to automatic summer/winter time adjustment, frost protection and valve protection, the thermostat is always ready to use.
Reliable and energy efficient: the Comet Zigbee thermostat helps you save up to 30% on heating costs. The highly stable and energy-efficient Zigbee wireless technology ensures high reliability and long battery life.
Quick and easy to install: the thermostat can be quickly and easily attached to your radiator valve thanks to the easy installation and the included adapter (compatible with Danfoss). So you can immediately benefit from the advantages of intelligent heating control.
Quality made in Germany - The Eurotronic radiator thermostats are produced in Germany and offer high quality at the best price.
If you have any questions or problems with the setup of the thermostats and gateway, please contact contronics customer service.
Heating very easy: With the intuitive app, you can control your heating like a professional. Create individual schedules and adjust the temperature according to your wishes.
Flexible gateway: The ZigBee Gateway connects easily to your router via Wi-Fi and can be placed anywhere. Thanks to NFC or WiFi, you can quickly and easily pair your smartphone with the gateway when setting up the system.

109,95 €
03

Eurotronic

Eurotronic 700083 Comet Plus Radiator Thermostat Electronic 8 to 28 °C

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Valve-friendly thanks to Eurotronic valve protection
Save up to 30% on heating costs
Heating and saving times individually adjustable
Four heating times and four saving times are adjustable per day
8 heating periods programmable

59,97 €
Value for Money

04

AVM

FRITZ!DECT 302 (Intelligent Radiator Controller for the Home Network, for Energy Saving, for All Standard Radiator Valves and FRITZ!Box with DECT Base, FRITZ!OS from Version 6.83)

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30% Off
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Smart radiator controller to save energy for the FRITZ!Box home network, automatic and precise control of the room or living temperature, ideal for creating an individual, efficient heating rhythm
Note: FRITZ!DECT 302 becomes FRITZ!Smart Thermo 302: This is only a product rename. Technically the products are identical, only name and packaging design may vary.
Energy-efficient e-paper display and numerous convenience functions, such as frost protection, limescale protection or boost function, window on detection, button lock, push service, group switching and much more.
Easy to install and set up on all standard radiator valves with connection thread, additional adapter available, seamless combination with other FRITZ! radiator controllers. Please note product dimensions and manufacturer's specifications for compatible heating models.
Control via PC, notebook, FRITZ!Fon, smartphone or tablet - even on the go via the Internet and via app, individual heating profiles can be programmed
Connection with FRITZ!Box at the touch of a button and convenient configuration via the FRITZ!Box user interface, for FRITZ!Box with DECT base and FRITZ!OS from version 6.83, new features available via regular, free updates
Box contents: FRITZ!DECT 302, 3 x AA batteries (in device), installation instructions, adapter for Danfoss RA

48,00 € 69,00 €(30% Off off)
05

Eurotronic

Eurotronic Comet Plus Radiator Thermostat Set - Intelligent Heating Control for 4 Radiators Including PROGmatic Stick for Programming on PC

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Take advantage of the intelligent functions of the electronic radiator controller: automatic window open detection, holiday mode, frost and limescale protection function as well as automatic summer/winter time changeover.
Save up to 30% on heating costs this winter with the quiet Comet Plus heating thermostat and experience comfortable heating control without apps, clouds or Internet dependence.
Quality made in Germany - The Eurotronic Comet Plus radiator thermostats are produced in Germany and offer high quality at the best price.
Mount the digital thermostat to your radiator valve in no time at all. The high-quality metal nut of the thermostat head fits all standard valves with the thread dimension M30 x 1.5 mm. Special adapters compatible with Danfoss RA, RAV and RAVL valves are included.
Create individual time profiles directly on the programmable heating thermostat in just a few steps or using the included PROGmatic stick via your Windows PC or laptop. Instructions specially made for this solution are included with the package and help you set up.

99,95 €
06

Fritz

AVM FRITZ!DECT 301 (Intelligent Radiator Controller for Home Network, for all Standard Radiator Valves and Fritz!Box with DECT Base, Fritz!OS from Version 6.83)

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15% Off
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Please refer to the product dimensions as well as the manufacturer's specifications for compatible heating models.
Intelligent radiator controller for the FRITZ!Box home network, automatic and precise control of room temperature, for FRITZ.Box with DECT base and FRITZ!OS from version 6.83.
Individual heating profiles can be programmed, comfort functions such as e-paper display, window-open detection, group circuit, key lock, limescale protection, automatic frost protection.
Easy to install on all standard radiator valves with connection thread, additional adaptor available.
Convenient configuration via the FRITZ!Box user interface, control via PC, notebook, smartphone or tablet - even on the go via the Internet and via app
Contents: FRITZ!DECT 301, 2 x AA batteries, installation guide, adapter for Danfoss RA

50,00 € 59,00 €(15% Off off)
07

AVM

AVM Fritz DECT 440 (Portable, Customisable Buttons for Operating Smart Home, Control Smart Fritz Devices, Compatible with the Fritz Box with DECT Base Station), White

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27% Off
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Use in conjunction with Fritz! LED bulbs, Fritz! sockets and the Fritz! radiator control.
Handy design, portable or stationary use, easy wall mounting or magnetic wall mounting.
Convenient remote control of your smart home network via the four customisable buttons.
Control up to twelve devices or device groups conveniently via the high-resolution e-paper display.
Can be used with any Fritz!Box with a DECT base station or Fritz!Os from version 7.10 and connected via DECT ULE technology.

47,00 € 65,00 €(27% Off off)
08

eqiva

Eqiva Radiator Thermostat Model N, 132231K2

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universally applicable, suitable for the most common valve manufacturers
Timeless, simple housing, compact design and particularly quiet gearbox
The radiator thermostat is easy to install and does not require heating water drain or intervention in the heating system. No special tools are required, nor does the heater need to be switched off. The union nut attached to the radiator thermostat is universal and can be used without accessories for valves of the most common manufacturers with a thread size of M30 x 1.5 mm.
Ready for immediate use thanks to preset programming
Radiator thermostat for timed regulation of room temperature
Easy to use thanks to the slanted arrangement of the control and display elements, even under unfavourable installation conditions
Easy installation without draining water, without intervention in the heating system, no special tools required
Comfortable and precise adjustment of the target temperature (accurate to 0.5 °C), directly and intuitively on the rotary wheel

19,95 €
09

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Zigbee Starter Set, Energy Saving Controller and Gateway with Wireless Standard (Programmable Smart Thermostat in Set, Save Heating Costs)

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Smart home accessories with different uses: the heating controllers made in Germany can be used as a heating thermostat depending on the mode or act as a pure actuator when the control is deactivated.
Ready for use: two Comet ZigBees come in a set and use the Home Automation Profile 3.0 as a radiator thermostat. The measured temperature and the position of the valve drive are reported back to the included Gateway ET Home Link.
Intelligent and programmable energy saving controllers: the valve-friendly heating controllers can be individually programmed and set daily or weekly times individually, while adjustments are also possible at any time via sensor buttons on the thermostat.
Efficient saving on heating costs: With the quiet smart home accessories, up to 30% of heating costs are saved, as among other things a window open detection, automatic summer/winter time adjustment and holiday function are included.
Box contents: Eurotronic Comet Zigbee starter set, energy saving controller and gateway with wireless standard Zigbee (smart radiator thermostat, 2 x Comet ZigBee energy saving controller/er, 1 x Gateway ET Home Link, quick start guide (in 10 languages), 2 x 3 adapters (Danfoss RA, RAV, RAVL), 2 x 2 LR6/Mignon/AA batteries)

49,99 €
10

eqiva

Model N Radiator Thermostat, with Boost Function, Quiet Model, Set for 4 Rooms

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Timeless, simple casing and compact design, extremely quiet gear unit.
Reduces power consumption of your radiators by up to 30 percent, easy to install.
Ready for immediate use with pre-set programming, can be individually programmed for each day.
Easy operation due to the slanted placement of the operating and display elements.
Automatic heating and energy saving in all rooms, automatically lowering the temperature when airing the room.

73,95 €