Best Door Window Sensors Deals Online in the UK (24 Deals Found)

Last Updated - 11/09/2026 Sort By:

Best Choice
TECKNET

New
TECKNET Door Alarm Sensor, Window Alarms Sensors, 2-in-1 Alarm & Chime, 3-level Volume Control, Door Sensor for Home Sec
Quick Alarm & 3 Modes: The "Alarm" mode will immediately activate a continuous and super strong siren when the sensor an

£11.89 £13.99
Best Value
Tapo

New
Tapo T110 Smart Door Alarm, Window Door Alarm Sensor with Real-Time Monitoring, Instant Notifications, Smart Home Automa
Window/ Door Safeguard – Monitor the opening and closing of windows, doors, cabinets, the fridge, or the mailbox in real

£12.49 £14.99
New
Tuya WiFi Smart Door Window Sensor Alexa Google Home Smart Life Brand New
Protect your home with this WiFi Smart Door & Window Sensor.

£6.48
15% Off
VOXON

New
VOXON Wireless Door and Window Alarm Sensor 2 Pack 2 Modes Magnetic Window Door Burglar Alarm with 100dB Loud for Kids S
【Safe and Secure】 This window alarm can instantly detect any movement in your door or window. Now you can keep intruders

£8.49 £9.99
New
Door/Window security system, remote.12v/240v you customise I Build, EASY to use
If an intruder breaks in through a protected door/window the alarm will instantly go off, the sirens are deafening and t

£53.73
Aqara

New
Aqara Zigbee Door and Window Sensor, Wireless Mini Contact Sensor
✽【NOTES】Aqara Hub is required and sold separately. Requires a secured 2. 4 gigahertz Wi-Fi network connection. One Aqara

£16.99
17% Off
Aqara

New
Aqara Zigbee Door and Window Sensor 3Pack, Aqara Hub Required
✽【NOTES】Aqara Hub is required and sold separately. Requires a secured 2. 4 gigahertz Wi-Fi network connection. One Aqara

£39.99 £47.99
New
4PC SONOFF Zigbee Door Window Sensor,Home Security Wireless Contact Alarm Sensor
【Zigbee Hub Required】Supports Zigbee hubs using the Zigbee 3.0 protocol, such as SONOFF NSPanel Pro, SONOFF iHost, SONOF

£23.99
Eve

New
Eve Door & Window (Matter) – Smart contact sensor for doors & windows
Check your door or window: See the current open / closed state at a glance, Create automations to control other connecte

£34.95
New
Wiser Window Door Sensor
Wiser Window Door Sensor opened for testing only

£31.90
15% Off
TechRise

New
TechRise Door Window Alarm Sensor, 2-in-1 Alarm & Chime, Mini Door Sensor for Home Security, 3-level Volume Control, She
Multifunctional door window alarm: The home security alarm has 3 modes: Chime mode, which emits a "ding dong" prompt sou

£11.04 £12.99
SONOFF

New
SONOFF SNZB-04P Zigbee Door Window Sensor, Send Alert to Your Smartphone for Home Security, Compatible with Alexa/Google
【Monitoring Doors & Windows】Automatically turning on lights when a door is opened, triggering audible and visual alarms

£11.99
New
4× SONOFF SNZB-04PR2 Zigbee Smart Door/Window Sensor APP Alarm Alexa Google Home
【Zigbee Hub Required】Supports Zigbee hubs using the Zigbee 3.0 protocol, such as SONOFF NSPanel Pro, SONOFF iHost, SONOF

£24.12
15% Off
SONOFF

New
SONOFF SenseGuard DW Gen2 Zigbee Door Sensor, Open/Close Monitoring, Door & Window Alarm for Home Security, Phone Alert,
Accurate Open/Close Monitoring & AAA Battery Powered: The sensor requires a Zigbee hub to operate. You can monitor door

£29.75 £35.00
New
Shed Alarm, door magnet 12v/240v security system Shed, Lock up remote option
Keep your valuables secure with this Shed Alarm and Door Magnet Security System.

£35.01
Xiansini

New
4 Pack Door Alarm & Window Alarms for Home Security, 120dB Wireless Door Alarm Sensor Kit, Loud Wireless Home Security S
【Multi-Functional Sensor】Designed for versatile use, this door alarm sensor doubles as a window alarm, doorbell, refrige

£6.98
New
Samsung SmartThings GP-U999SJVLAAA Door & Window Multipurpose Sensor, White, 1 C
The Samsung SmartThings GP-U999SJVLAAA Door & Window Multipurpose Sensor in white is a wireless unit powered by batterie

£20.43
New
Wireless Door / Window Sensor, LED, White Indoor, 7507N-SIG w/ CR2032 & Screws
Wireless Door / Window Sensor, LED, White Indoor, 7507N-SIG w/ CR2032 & Screws

£16.15
New
Response Alarms Door Window Detector 433MHz SA Range INCLUDING GUIDE /RRP £39.95
The Response SAM 433MHz Door Window Detectors are for Use with all the Response / Friedland SA and SA E range of 433Mhz

£37.95
New
Wireless Door Window Sensor Alarm 110dB High Volume Siren Household Burglar Kit
110dB Sound Alarm.

£29.99
New
Yale HSA6010 App Enabled Smart Alarm Door/Window Contact Sensor – Replacement
Yale HSA6010 App Enabled Smart Alarm Door/Window Contact Sensor – Replacement

£15.08
New
Ring Contact Sensor Z-Wave Plus Door/Window SmartThings Home Assistant Hubitat
Tap here to read the full listing of our Ring Contact Sensor Z-Wave Plus Door/Window SmartThings Home Assistant Hubitat.

£19.49
New
Tuya WiFi Door Window Sensor Alarm Smart Home Security App Control Wireless
A WiFi door & window sensor with a 90dB siren built in — so trouble gets stopped on the spot, not just logged on your ph

£19.31
New
Minder Vibration & Door / Window Contact Alarm System with Code + exit delay
Minder wireless door & window alarm device with built in vibration detection.

£5.44

24 Door Window Sensors deals are available from: Amazon, eBay stores, starting from £5.44.
The biggest discount we found is 17% on Aqara Zigbee Door and Window Sensor 3Pack, Aqara Hub Required at Amazon.
The lowest price we found is £5.44 while the highest is £53.73.
Prices for the best Door Window Sensors deals average at £21.82.
Last updated on September 11, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Door Window Sensors.