Best Fritz 301 2026

Advertising Disclosure

Last Updated - 22.07.2026

Best Choice

01

Homematic IP

Homematic IP Wireless Smart Home Heating Control Complete Package for 4 Radiators with Free Smartphone App. Contents: Central, 4 radiator thermostats, 2 door window contacts, 1 wall thermostat., 144606A

Show more
9.7

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.

Show more
Main highlights

The wall thermostat in combination with the radiator thermostat ensures optimal temperature control in your central room.
The complete solution allows you to control 4 radiators and can be extended with other Homematic IP components.
Save up to 33% on heating costs by dynamically adaptive balancing of the radiator thermostat, which saves energy and CO2.
Control your heating anytime and from any place conveniently via the free smartphone app.

274,95 €
Value for Money

02

FRITZ!

FRITZ! Box 7690 (Wi-Fi 7 DSL Router with 5,760 Mbps (5GHz) & 1,376 Mbps (2.4 GHz), up to 300 Mbps with VDSL Supervectoring and ADSL2+, WLAN Mesh, DECT Base, German Version

37% Off Limited Time Deal

37% Off

Limited Time Deal

Show more
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.

Show more
Main highlights

Wi-Fi 7 for extremely high performance, up to 7.1 Gbps - for maximum capacity, minimum latency and outstanding efficiency
WLAN Mesh - Multiple WLAN access points are combined into a WLAN network with optimal performance, compatible with all standard WLAN amplifiers, easy and secure WLAN setup at the touch of a button
Telephony and smart home in one - with Zigbee support and DECT base for up to 6 cordless phones as well as integrated control for light, power and heat
Perfect for home office, streaming and gaming - strong DSL performance for smooth work, entertainment of the highest quality and stable connections even during intensive use
Highest security standards - modern WLAN with WPA 3/2 encryption and regular FRITZ!OS updates

219,99 € 349,00 €(37% Off off)
03

FRITZ!

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

32% Off Limited Time Deal

32% Off

Limited Time Deal

Show more
9.5

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.

Show more
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

46,99 € 69,00 €(32% Off off)
04

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

Show more
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.

Show more
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.

16,94 €
05

TP-Link

TP-Link Kasa KE100 Smart Radiator Thermostat, Accessory Product, Energy Saving, Schedule, Control on the Go via App, Alexa and Google Assistant, Hub Required, White, 56.6 x 56.5 x 83.93 mm

Show more
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.

Show more
Main highlights

Versatile compatibility – Fits most radiator valve threads (M30x1.5) and the six included adapters (RA, RAV, RAVL, CAL, M28 and GIA) ensure more compatibility. -
Ultra-long standby time – Using the energy-saving wireless technologies that promise a longer battery life.
Smart anywhere and any time – Control the temperature of your home with the Kasa Smart App from anywhere and any time. Set schedules to automate your heating that matches your daily routines. Open window detection – KE100 can now work with Tapo T110. Please add Tapo T110 via the KH100 hub in the Kasa app.
Room-by-room comfort – Set the perfect temperature in each room individually. Save your preferred scenario for further use.
Please note that the Kasa KE100 can only be controlled via the Kasa app and not via the Tapo app. Tapo sensors (Tapo T110, Tapo T310, Tapo T315) can be set up in the Kasa app. Please add the Tapo sensors via the KH100 hub in the Kasa app. The Kasa KE100 kit only supports 2.4GHz WiFi, not 5GHz.
One for all – Each hub can connect and control up to 32 radiators, with the Kasa app you can combine and control all radiators. All rooms under control.
Matter certified – Users can connect the KE100 locally to Apple Home, Amazon Alexa, Google Home, Samsung SmartThings or other Matter-enabled smart home platforms. *Kasa Hub required. *Please update the Kasa app and KH100 firmware to the latest version. 1. Go to the KH100 Hub page in the app, then go to Device Settings > Mount to Matter to find Matter code. 2. Follow the Matter setup process to configure KH100. 3. All other Kasa Hub products, such as TRVs and sensors, are synchronised with third-party platforms.
Easy installation – Simply replace your old radiator valve with Kasa and follow the step-by-step instructions (English language not guaranteed) in the app for installation. You can do all this yourself without difficulty.
Child lock – Prevent children from accidentally operating your radiator.
Caution. Please note that this thermostat must work together with a hub, you must have KE100 KIT in advance. KE100 cannot work with the Tapo H100 and Tapo H200 hub, but only with the hub in the KE100 kit.

31,99 €
06

ET - EUROTRONIC Technology GmbH

Eurotronic Comet Plus Radiator Thermostat

Show more
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.

Show more
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, 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 €
07

Homematic IP

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

Show more
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.

Show more
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).

29,50 €
08

mein haus shop

Radiator Thermostat Adapter for RA Valves Stainless Steel (1)

Show more
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.

Show more
Main highlights

Material: 1.4301 rustproof
For applications where optics and design are in the foreground
Connection: thread M30 x 1.5
Compatibility: Danfoss RA, RA-N valves
2023 version made of stainless steel

7,99 €
09

Vaint

Smart Radiator Thermostat WLAN with App - Programmable, Energy Saving up to 30% - Alexa Compatible - Digital Thermostat Heating RT2208WF

Show more
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.

Show more
Main highlights

Windows-on-detection Automatic temperature reduction when airing for energy saving.
WiFi & App Control Control the heating via smartphone via an iOS & Android app - even on the go.
Voice control compatible with Amazon Alexa & Google Home
Individual weekly program. Flexible temperature profiles with up to 9 switching intervals per day.
Holiday function Reduced temperature during prolonged absence.

19,95 €
10

SALCAR

SALCAR Radiator Thermostat TRV801W Thermostat Heating Smart LCD WiFi Thermostat Compatible with Amazon Alexa & Google Home Heating Thermostat Tuya Smart Radiator, No Gateway Required

Show more
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.

Show more
Main highlights

Smart heating thermostat, no hub required: you can easily control the room temperature of your living room, kitchen, bathroom via 2.4 GHz WiFi, new TRV801W radiator thermostat can be integrated without an additional gateway. Different from the original traditional display on the valve body, simple and clear LCD display on the housing.
Remote control and voice control: After linking your app account to your Amazon or Google account, you can use Amazon Alexa or Google Home for smart home integration and voice control. With the SALCAR Smart Radiator Thermostat, you can easily control your heating from anywhere via Smart Life app, Alexa or Google Assistant.
Package contents: 1 x thermostat M30 x 1.5 mm, 6 x adaptors: RA, RAV, RAVL, Canleffi, Giacomini & M28, 1 x adapter screw, 5 x instructions, battery included. (Three 1.5 V alkaline AA batteries)
HIGH PERFORMANCE The intelligent radiator thermostat valve has a variety of practical functions, including antifreeze function, anti-limescale function, child lock function, window detection function, low battery reminder function, etc. Control your heating anytime and anywhere via the Tuya Smart Life app, you can choose between automatic mode, manual mode, comfort mode, energy mode, which make your life smarter and easier.
Energy saving: SALCAR thermostat heat your home to the right temperature with the heating plan only if necessary to save energy 30% while enjoying a pleasant room temperature. It supports the window detection function. The SALCAR temperature control valve can be installed with three 1.5V alkaline AA batteries, reducing the frequency of battery replacement (battery included).

42,83 €