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Honeywell Home DT2 Digital Room Thermostat

4.3 (55 reviews)
SKU: 240303164101008 EAN: 5059085000110
• Digital wired ON/OFF thermostat • Powered by 2x AA batteries • Wall bracket and batteries included • Range 5°C to 35°C Intelligent self-learning (TPI), and one-touch ECO button allows user to change to a lower, energy-saving set point for a timed period. When the ECO button is pressed, the user is given the chance to set the time required at this new temperature, from 1 hour to 24 hours in 1-hour increments.
Battery Size AA
Brand Honeywell
Colour White
Compatible Brand Universal
Compatible Model Universal
Compatible Product Universal
Control Style Digital
Features Adjustable Thermostat
Material Plastic
Model Honeywell DT2
Mounting Wall-Mounted
MPN THR840DEU
Power Source Battery
Programmability Non-Programmable
Sensor Technology Temperature
Voltage Type Low Voltage
Wire Configuration 2-Wire
No features listed
No items listed

Customer Reviews 55

4.3
55 reviews
5 star
37
4 star
8
3 star
5
2 star
1
1 star
4
UNBELIEVABLE
1.0
February 7, 2026
430c8358-b0b8-5f78-a10b-0dfb8303d047 Verified Purchase

Bought the DT2 thermostat as it looked clear and simple to use. Connected it, and was disappointed when there was "NO BACKLIGHT". This made it difficult for me as I have a particular eye sight problem!!!. No clear indication on instructions as to whether it had a backlight. Checked on the internet and it said it did. Contacted Toolstaion and was told to make checks myself.
Returned the TD2 and had a replacement.This too had no "back light". It clear to me that both DT2's had previously returned because of faults and re sold still faulty. This not only very bad practice, it us very stupid, I would now never buy anything from Toolstion. 2nd DT2 returned and had a refund.

Wall thermostat
1.0
January 22, 2026
565a1b33-d13f-5e40-91f4-59b865fc689e Verified Purchase

Looks worse than previousl items and makesva large click. The previous one failed so I'm not buying Honeywell again.

replacement
5.0
January 19, 2026
MartynBobthebuilder Verified Purchase

An almost identical substitute for the one they don't make anymore

Good quality
5.0
December 7, 2025
Nonna 2025 Verified Purchase

Very pleased with my purchase , this is a replacement for one we had before , time will tell .

Easy to fit
5.0
December 4, 2025
Tracker man Verified Purchase

Fantastic peace of kit very easy to fit and control and looks good

Response
5.0
November 30, 2025
MrK K Franklin Verified Purchase

So sorry purchased in error ...returned but always a big fan Toolstation

Honeywell home room thermostat
5.0
November 23, 2025
PJK electrical contractor Verified Purchase

Easy to install and use and good user operation functionality

Honeywell DT2 digital thermostat.
5.0
October 21, 2025
Nellyd Verified Purchase

A replacement for a previous model and very straightforward swap without the need to even change the two wires over as the terminal block can be removed and replaced in the new unit.
Good product and easy to use

Once you can finally get it apart...
3.0
October 10, 2025
Desert Warrior Verified Purchase

Getting it out of the box was easy. Taking it apart to fix to the wall was impossible. Front is clipped to the back and clips were on the verge of snapping when after 20 minutes I got it apart. Instructions not clear as to whether it's switched on or off!

Thermostat
5.0
September 27, 2025
561b72bc-28ca-529d-9327-22d91ffc286b Verified Purchase

Bought this as my previous one had failed and was no longer being made, it was reasonably priced and so far is doing the job.
It was straight forward to connect and although slightly different to the previous one was an easy fit!

YOU HEARD IT HERE FIRST
5.0
June 11, 2025
Bfg Verified Purchase

So easy to replace with old model does exactly what it says on the tin

Honeywell Home DT2, weak front cover catch
1.0
March 14, 2025
Electra Plumb ltd Verified Purchase

Front cover keep dropping down, catch very weakly made.

Great thermostat
5.0
March 3, 2025
Andy plumbline Verified Purchase

Nice and easy to install easy to use and very accurate looks good and a reasonable price. I recommend this thermostat. The eco function comes in handy as well.

Honeywell room stat
4.0
February 23, 2025
Mr cutters Verified Purchase

I brought this as a replacement room stat, easily installed & works well

Excellent basic thermostat
5.0
December 8, 2024
SteadyPH Verified Purchase

Excellent basic thermostat, very easy to setup and install

Room Thermostat
5.0
November 23, 2024
Milly Mander Verified Purchase

Did exactly what it said it would,very pleased,and easy to fit

Make life easy.
5.0
November 21, 2024
Thermo king Verified Purchase

My wife loves this, so easy and simple to use. To many programmers make life unnecessarily awkward to use.

Hot or cold!
5.0
November 18, 2024
DIY is my speciality Verified Purchase

It does what it says but there is some programming to sort out!

Room thermostat
5.0
November 9, 2024
Brian P C Verified Purchase

Couldn't have improved service, however a better full specification would help when searching on line. I had to contact Honeywell for the info I required as your description did not include what I needed.

Ideal replacement for older thermostat.
5.0
November 5, 2024
JT66 Verified Purchase

Replaced an 18 year old mechanical timer with this thermostat and it works really well to maintain temperature. Already have a programmer so just wanted a straight forward user friendly device Only needs the live and live out to wire it up - neutral and earth not required. Eco button handy during the night.

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