£45.00

It has never been this cheap. We have no record of a lower price.

£45 today · cheaper than every other day in the last 3 months

Honeywell Home THR840DEU DT2 Digital Thermostat - White

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 17 days · 17 data points (no recent data)

Historical
Generating forecast…
£48.00 £44.70 £45.42 £46.14 £46.86 £47.58 £48.30 23 July 2026 27 July 2026 31 July 2026 04 August 2026 08 August 2026
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Wired White, THR840DEU

Price data last checked 74 day(s) ago - refreshing...

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Price Distribution

Price distribution over 17 days • 3 price levels

Days at Price
Current Price
3 days · current 13 days 1 day 0 3 7 10 13 £45 £46 £48 Days at Price

Price Analysis

Most common price: £46 (13 days, 76.5%)

Price range: £45 - £48

Price levels: 3 different prices over 17 days

Description
Manage your home climate with ease using the Honeywell Home THR840DEU DT2. This digital wired on/off thermostat provides reliable heating or cooling control with a set point range from 5 degrees to 35 degrees Celsius. Designed for simplicity, it features an extra-large display and a straightforward user interface that makes temperature adjustments quick and easy. This model utilizes intelligent self-learning technology (TPI) to help manage your environment more effectively. For those looking to reduce energy use, the dedicated one-touch Eco button allows you to switch to a lower, energy-saving set point for a specific duration. You can customize this timed period from 1 to 24 hours in 1-hour increments to suit your daily routine. Installation is made simple with an easy mounting design, and the unit is battery powered for convenience. For professional setups, an installer mode is available to customize the device for specific applications and user needs. Whether you are looking for better control or easier energy management, this thermostat provides a practical solution for your HVAC needs.

Key Features

Intelligent self-learning TPI technology helps manage your heating and cooling more effectively for consistent comfort.

One-touch Eco button allows you to quickly switch to an energy-saving set point for a set period between 1 and 24 hours.

Extra-large display and a simple user interface ensure that temperature settings are easy to read and adjust.

Customizable installer mode allows for specific settings tailored to your unique application and user requirements.

Easy to mount and use with a battery-powered design, providing a straightforward setup for your home.

Versatile control with a wide set point range from 5 degrees to 35 degrees Celsius for both heating and cooling.

Product Specifications
Brand
Honeywell Home
Model
THR840DEU
Colour
Wired White
ASIN
B07YPQRC4L
Category
DIY & Tools > Building Supplies > Heating & Cooling > HVAC Controls
Domain
Amazon UK
Listed Since
23 October 2019

Barcode

No barcode data available

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