Best Dect 301 2026

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Last Updated - 27.03.2026

Best Choice

01

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

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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

Optimal adaptation to weather conditions: The Comet Plus has a holiday function, frost and limescale protection function and an automatic summer and winter time adjustment, which can save you on heating costs.
Note: heating valves with which the regulators are compatible without adapters, and that the included black plastic adapters are only suitable for Danfoss valves
Individually programmable: The settings can be made directly on the Comet Plus or even more comfortably using the PROGmatic programming stick (not included) on the PC.
Easy to use: The Comet Plus energy saving controller is easy to install and operate. It is valve-friendly thanks to the Eurotronic valve protection and also fits many other well-known radiator valves.
Box contents: Comet Plus energy-saving controller, instruction manual DE (other languages on request), 3 adapters (Danfoss RA, RAV, RAVL), 2 x AA Mignon batteries, dimensions: 65 x 54 x 85 mm, set of 4, colour: white
AUTOMATIC ROOM VENTILATION Thanks to the window open detection, the radiator thermostat detects directly when a room is being ventilated and closes the valve immediately to save energy.

75,90 €
02

FRITZ!

AVM Fritz!DECT Repeater 100 (Increases DECT Range)

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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

With FRITZ!Box as a base station DECT repeating also for HD telephony, Internet radio, podcasts and RSS as well as eavesdrop-proof calls
Quickly and easily increases the DECT range, ideal for all FRITZ!Box models with integrated DECT base
Multiple calls at the same time over long distances, range can be extended in any direction by using additional repeaters
Compatible with DECT base stations from other manufacturers (GAP standard) with activated repeater function
Box contents: FRITZ!DECT repeater 100, installation instructions (English language not guaranteed)

70,99 €
03

FRITZ!

FRITZ! Smart Thermo 302, Intelligent Radiator Controller, Efficient Heating & High Convenience, Compatible with Standard Radiators, Comfortable Control via App & Display, Easy Setup

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18% Off
9.2

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 for the FRITZ!Box home network, automatic and precise control of the room or living temperature, ideal for creating an individual, efficient heating rhythm
Energy-efficient e-paper display and numerous comfort 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
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, new features available via regular, free updates

45,99 € 55,90 €(18% Off off)
Value for Money

04

FRITZ!

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

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19% 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

55,98 € 69,00 €(19% Off off)
05

FRITZ!

AVM FRITZ! DECT 200 - Intelligent socket for the home network, German-language version

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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

Switch individually: once, daily, weekly, rhythmically, randomly, depending on the time of sunrise and sunset or via Google Calendar
Measures energy consumption and shows details on performance, consumption, electricity costs and the carbon footprint and sends them on request by Push-Mail, scope of delivery: FRITZ! DECT 200, German installation instructions
Intelligent socket for Smart Home, switches the power supply of connected devices automatically or manually (up to 2,300 watts)
Controllable via FRITZ! Fon via DECT, via PC, smartphone or tablet via the user interface of the FRITZ! Box or MyFRITZ! App
Compatible with the following FRITZ! Boxes: FRITZ! Box 7490, FRITZ! Box 7390, FRITZ! Box 7360, FRITZ! Box 7320 (1 & 1), FRITZ! Box 7270 ( From version v2), FRITZ! Box 7272, FRITZ! Box 7240 (1 & 1), FRITZ! Box 6842 LTE, FRITZ! Box 6840 LTE, FRITZ! Box 6810 LTE, FRITZ! Box 6360 Cable, FRITZ! Box 6490 Cable

42,42 €
06

Oventrop

Oventrop Thermostatic Head Adaptor, M30 x 1.0 to M30 x 1.5, Valve Adaptor # 1011445

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8.8

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

for conversion of threaded connection.
Oventrop adaptor, M30 x 1.0 to M30 x 1.5, nickel-plated,
Manufacturer’s no.: 1011445.
For Oventrop valves up to 1998.

11,87 €
07

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

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8.5

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

Optimal adaptation to weather conditions: The heating thermostat has a holiday function, frost and limescale protection function and automatic summer and winter time adjustment, which can efficiently save heating costs.
Individually programmable: settings can be made directly on the Comet Plus or with the PROGmatic programming stick (not included) on the PC. The Comet Plus is a purely electric thermostat (not a smart accessory).
Easy to use: The Comet Plus energy saving controller is easy to install and operate. It is valve-friendly thanks to the Eurotronic valve protection and also fits many other well-known radiator valves.
Box contents: Comet Plus energy-saving controller, instruction manual DE (other languages on request), 3 adapters (Danfoss RA, RAV, RAVL), 2 x AA Mignon batteries, dimensions: 65 x 54 x 85 mm, colour: white
AUTOMATIC ROOM VENTILATION Thanks to the window open detection, the radiator thermostat detects directly when a room is being ventilated and closes the valve immediately to save energy.

16,95 €
08

LitOrange

Litorange 2 x 304 stainless steel heating valve adapter, radiator valve thermostat head with strips, radiator thermostat RA adapter to M30 x 15

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36% Off
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

Thread: The adapter is compatible with an M30x1.5 thread and an inner diameter of 22 mm and is suitable for Ra, Rav and Ravl valves. Please make sure the inner diameter of your radiator valve is 22mm to ensure a correct fit
Scope of application: ra adapters are widely used for all kinds of heater valves and temperature control heads
Perfect grip & application: the vertical grooves on the adapter ensure a non-slip and comfortable grip during installation and operation
High-quality material: all thermostat adapters are made of 304 stainless steel, which can better resist rust, corrosion and high temperatures
FULL KIT FOR INSTANT INSTALLATION The kit includes 2 thermostat adapters, 4 screws and 1 hex wrench, allowing you to complete the installation right out of the box - without additional tools

6,99 € 10,99 €(36% Off off)
09

LitOrange

Litorange 2 x 304 stainless steel heating valve adapter, radiator valve thermostat head with strips, radiator thermostat RA adapter to M30 x 15

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18% Off
8.1

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

Thread: The adapter is compatible with an M30x1.5 thread and an inner diameter of 22 mm and is suitable for Ra, Rav and Ravl valves. Please make sure the inner diameter of your radiator valve is 22mm to ensure a correct fit
Scope of application: ra adapters are widely used for all kinds of heater valves and temperature control heads
Perfect grip & application: the vertical grooves on the adapter ensure a non-slip and comfortable grip during installation and operation
High-quality material: all thermostat adapters are made of 304 stainless steel, which can better resist rust, corrosion and high temperatures
FULL KIT FOR INSTANT INSTALLATION The kit includes 2 thermostat adapters, 4 screws and 1 hex wrench, allowing you to complete the installation right out of the box - without additional tools

8,99 € 10,99 €(18% Off off)
10

Homematic IP

Homematic IP Smart Home Radiator Thermostat – Basic, Digital, for Heater, Control via App, Alexa, Google Assistant, Easy Installation, Energy Savings, 153412A3

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7.9

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

With the basic radiator thermostat, you can save up to 33% on heating costs– thanks to individual temperature schedules with up to 13 changes per day across three adjustable heating profiles and in combination with open-window detection using a window and door contact.
The setup and control of the thermostat via the free smartphone app and the free cloud service requires connection to the Homematic IP Access Point. This product is no longer compatible with the CCU2 central unit.
Stand-alone operation (push-to-pair) allows direct pairing of up to eight Homematic IP window and door contacts (HmIP-SWDM) and direct control on the device.
Replaces conventional radiator thermostats in just a few simple steps– no intervention in the heating system or draining of water is required.
Ready for immediate use thanks to preset heating profile, which can be manually adjusted if required (individual temperature gradients with up to 13 changes per day).

29,95 €