Wireless Room Sensor

In stock

This small, discreet sensor is not much taller than a standard light switch. It cleverly integrates both accurate temperature measurement and sensitive occupancy detection together in one device for applications where looks are important and you want something to blend into the surrounding room.

Adding a Wireless Room Sensor to a room where you’ve installed a Smart Radiator Valve, or are using the Smart Master Controller to control your underfloor heating, enables you to see the accurate measured temperature in the room on the app at the same position as the occupants in the room. As these are wall mounted and not next to radiators, behind sofas or heavy curtains, they give a highly accurate reading of what the whole room feels like.

The Wireless Room Sensor also gives you access to ‘Footprint Mode’: where the system learns when the room is used automatically heating it ready for the occupant’s arrival; then turning down the radiators when they leave.

• Wet Radiator Control
• Electric Heating Control
• Electric/Wet Underfloor Heating

Power Supply 1x CR123A lithium battery
Transmission Frequency 868.42 (EU) MHz
Operating Temperature Range 5°C to 30°C
Detection Range Front = 10m, +/- 45° = 8m
Relative Humidity 5% to 85%
Enclosure Protection IP21
Regulation EN60950-1:2006, A11:2009, FCC part 15.249, EN300 220-1
RoHS Compliant
Indoor Use Only

This unit comes with a standard 2 years manufacturer warranty.

Please refer to the Warranty Policy.

Standard Delivery Charges Apply. Proceed to checkout to see all available delivery options.

Orders above £350 incl. VAT Qualify for Free UK Delivery.

If you are ordering multiple different items, we will always endeavour to dispatch your goods together. However, separate dispatches may be necessary if the items you have ordered are being shipped from different locations. Check our delivery page or speak to our customer service team for more information.

Delivery charges are calculated at checkout based on your delivery postcode. Please be aware that postcodes in the Scottish Highlands, Norther Ireland, or any other location outside of UK Mainland may incur additional costs.

Please Note: Our products are in stock and are dispatched as soon as possible, with the majority of orders being fulfilled on time in full the next working day. However, due to unprecedented congestion within courier and haulier networks across the UK, a small percentage of deliveries are taking a little longer to arrive with customers.

We use third party couriers to deliver our products safely and securely and always dispatch items on time from our distribution centre. We kindly ask for your understanding in supporting our staff and courier partners in the event that you experience a small delay in receiving your items due to circumstances beyond our control.

View the HM41WRSZ Data Sheet here.

  • High Accuracy Temperature Control
  • Manual Override Capability
  • Set Temperature Display
  • Open Window Shutoff
  • Water Temperature Measurement
  • Individual Room Heating Schedules
  • Display Rotation 180°
  • Frost Protection
  • Supplied with 2x AA batteries, last for 2 years
  • HM41WRSZ Room Sensor
  • Installation Instructions

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