Best Comet Dect 2026

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Last Updated - 03.02.2026

Best Choice

01

ET - EUROTRONIC Technology GmbH

Eurotronic Comet ZW eco: 4x Smart WiFi Thermostat for Radiators WLAN Heating Control Set Including Free App No Base Station Required

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9.8

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

The intuitive Smart Living app makes heating control a breeze. Create custom time profiles, adjust the temperature and save energy – all from your mobile app. A simple step-by-step guide is included.
Smart warmth for your home. The radiator controller impresses with a variety of smart functions: app control, window open detection, child lock and much more. Thanks to automatic summer/winter time adjustment and frost protection, it is always ready to use.
Save up to 30% on heating costs and enjoy cosy warmth at the touch of a button. With the intelligent Comet WiFi thermostat, you can easily control your heating via app or voice with Alexa - without additional hardware.
Quality made in Germany - The Eurotronic radiator thermostats are produced in Germany and offer high quality at the best price.
Installs in minutes: The thermostat can be quickly and easily attached to your radiator valve thanks to the easy installation and the included adapter. So you can immediately benefit from the advantages of intelligent heating control.

125,00 €
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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9.6

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

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

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

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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

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.
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, 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.

14,99 €
04

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Wifi, radiator thermostat, intelligent heating via WLAN, save heating costs, thermostat to regulate room temperature of the road, smart home accessories

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26% 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's living: With the wireless thermostat you control your room temperature, etc. in the kitchen, children's, living room and bathroom conveniently integrable via every 2.4 GHz WLAN network - stable and without additional gateway into your SmartHome.
Save costs: The room thermostat for comfortable comfort, thanks to real-time behavior, transforms temperature changes immediately and transmits them while it has a particularly low battery consumption over comparable devices.
Perfect room temperature from the road: The intelligent temperature controller ensures a preheated apartment whenever you come home has a vacation function and accesses your individual heating profiles.
Note: It is important to download the software update in the app for your product.
Intuitive Operation: The heating controller in noble, modern design with LED display is compatible with any WLAN router, fits almost all radiator valves and can be easily controlled by app or via the sensor keys on the device.

29,75 € 39,99 €(26% Off off)
Value for Money

05

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

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27% Off
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

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.

87,44 € 119,95 €(27% Off off)
06

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Zero Matter Energy Saving Controller with Wireless Standard Matter (Individually Programmable, Alexa, Google, Apple & SmartThings Compatible)

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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

Smart down to the last detail: heating and saving times can be individually adjusted weekly and day-way. The radiator thermostat helps to save up to 30% on heating costs and even detects when a window is open.
Safety in your home: The safety aspect of our smart home accessories is particularly important to us, which is why the energy-saving controller has been communicated locally and certified for optimal safety.
Matter wireless standard compatible energy saving controller: The Comet Zero Matter can be connected to a wide range of smart home systems such as Alexa, Google, Apple or SmartThings.
Especially fast and comfortable operability: a uniform communication standard and the cross-system use make the networking of the radiator thermostat made in Germany particularly easy.
Box contents: Eurotronic Comet Zero Matter, energy-saving controller with wireless standard Matter (energy saving controller, dimensions (W x H x D): 62 x 68 x 82 mm, quick start guide (DE/EN), 3 x adapters (Danfoss RA, RAV, RAVL), 2 x AA Mignon (included)

29,99 €
07

Eurotronic

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

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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

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

64,42 €
08

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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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

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 €
09

eqiva

Eqiva Radiator Thermostat Model N, 132231K2

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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

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

19,04 €
10

eqiva

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

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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

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.

62,90 €