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The Honeywell Home THR840DEU DT2 is a wired digital thermostat featuring a wide 5°C to 35°C temperature range, an intuitive one-touch Eco mode with adjustable timer, and a large, easy-to-read LED display. Designed for simple installation and use, it offers installer customization and a sleek, minimalist design that fits any modern home or office environment.
| ASIN | B07YPQRC4L |
| Backlight | Yes |
| Best Sellers Rank | 50,841 in DIY & Tools ( See Top 100 in DIY & Tools ) 2,336 in Heating & Cooling |
| Brand | Honeywell Home |
| Brand Name | Honeywell Home |
| Colour | Wired White |
| Connectivity Protocol | BACnet MS/TP |
| Connectivity Technology | Wi-Fi |
| Control Method | Touch |
| Control Type | Button Control |
| Controller Type | Push Button |
| Controller type | Push Button |
| Customer Reviews | 4.1 out of 5 stars 1,137 Reviews |
| Display Type | LCD |
| Included Components | Inhalt: 1 Stück |
| Item Dimensions D x W x H | 2.9D x 9W x 9.2H centimetres |
| Item Shape | Rectangular |
| Item Weight | 299 Grams |
| Manufacturer | Honeywell Home |
| Material Type | Plastic, Electronic Components |
| Model Name | THR840DEU |
| Model Number | THR840DEU |
| Model name | THR840DEU |
| Mounting Type | Wall Mount |
| Number of Batteries | 1 Nonstandard Battery batteries required. (included) |
| Power Source | Battery Powered |
| Product Style | Wired | Basic |
| Product dimensions | 2.9D x 9W x 9.2H centimetres |
| Special Features | Heiz- oder Kühlsteuerleistung mit Sollwertbereich |
| Special feature | Heiz- oder Kühlsteuerleistung mit Sollwertbereich |
| Specific Uses For Product | Boiler |
| Specification Met | energy |
| Temperature Control Type | Learning |
| Unit Count | 1.0 count |
| Voltage | 230 Volts |
C**0
Good Honeywell thermostat
Accurate and consistent performance. This thermostat comes with a good range of adjustable parameters for those who want to personalise their heating controls. Easy to install and attractive piece of kit.
L**W
Great
Easy to install, item as described. Easy to use, excellent value for money. Good quality for the price. Basic but does the job great and looks better than my previous thermostat. Would recommend
D**B
A replacement fitted in less than five minutes.
A direct swap for a failed unit, much cheaper than Screwfix plus next day delivery. Fitted in less than five minutes and working as it should. There is an updated version so probably in short supply
A**B
Good product
Bought this to replace my tired looking analog dial thermostat. Does exactly what it says on the tin.
M**Y
Rubbish quality
Failed within months
G**Y
This is an efficient room Thermostat. With added dismantle / reassemble information.
I first bought this particular room thermostat from a local DIY store. My old analogue type was inefficient, it had a huge hysteresis so the boiler 'would never switch off' unless the house temperature was way above the level that was set. This digital thermostat, easy to install, is very efficient and switches the heating on and off at the correct temperature. ( a separate thermometer proves this). My daughter's family had similar problems in their house so I tried to get them the same item. The local DIY store had stopped selling this particular item and only stocked items that were more complicated and more expensive. I opted for the Amazon store to find the same model I had purchased. Bingo! Bought it, installed it into my daughter's house. My son-in-law is over the moon with the result. So much more efficient and their boiler is running less than before. Some people have reported difficulty in opening the device. I had no problem, but being an engineer found it easy. To remove the cover, for access to the batteries, place your thumb on the bottom of the unit, fingers on the top, and 'twist' down. Cover easily removed. For access to the electrics and fixing screws. Isolate the 240v mains to the unit from the boiler control or main switch for safety. Use a small screwdriver blade to 'gently' release the 2 top locking tabs at the top for the middle case to be lifted clear. Done. To reverse the procedure, 'Click' the middle case back. To replace the front case: place the bottom in first and then twist top back in. Pull to check it has locked. Done.
J**B
Decent quality easy to install but no heat indicator
The installation was relatively straightforward however the instructions leave a lot to be desired. There isn't an adequate description of the various menu options for instance. Two complaints: – there should be a heating indicator I.e. heating relay active – on mine it does not appear (could be a firmware problem) – backighting on remote Would be eminently sensible even if for when you adjust/check
G**F
Easy to fit
Easy to fit Easy to use Clear and accurate display
Trustpilot
1 week ago
3 weeks ago