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Our most popular products based on sales. Updated frequently.
غ in Home Security Door & Window Sensors
#1
Tapo Smart Contact Sensor, Real-Time Monitoring Smart Window & , Instant Push Notification,Battery included,Easy Installation,Work with Alexa,Tapo Hub Required separately(TapoT110), packaging may vary
4.5 out of 5 stars
880
12 offers from
£12.49
#2
SECRUI Wireless Door Open Sensor Alarm Chime, 400ft Operating Range 52 Chimes Adjustable Volume with Mute Mode LED Indicators Magnetic Door Alarm Sensor for Home Store Office Security
4.2 out of 5 stars
2,852
1 offer from
£15.05
#3
VOXON Wireless Door and Window Alarm Sensor 2 Pack 2 Modes Magnetic Window Door Burglar Alarm with 100dB Loud for Kids Safety Home Shop Security
4.4 out of 5 stars
1,540
3 offers from
£8.49
#4
Door Window Alarm 2 Pack Noopel Home Security Ultra-Slim Wireless Magnetic Sensor Burglar Anti-theft 120DB Alarm with Batteries included - DIY EASY to Install
4.4 out of 5 stars
1,874
1 offer from
£13.49
#5
TECKNET Door Alarm Sensor, Window Alarm Sensors, 2-in-1 Alarm & Chime, 3-level Volume Control, Door Sensor Alarm for Home Security, Wireless Burglar Alarms for House, Shop, Office, Garage (3 PCS)
4.3 out of 5 stars
738
3 offers from
£12.99
#6
Aqara Door and Window Sensor, REQUIRES AQARA HUB, Zigbee Connection, Wireless Mini Contact Sensor for Alarm System and Smart Home Automation, Compatible with Apple HomeKit, Alexa, Works With IFTTT
4.5 out of 5 stars
6,666
2 offers from
£16.99
#7
Defender Door Handle Alarm - Wireless Hanging Intruder Alarm for Metal Door Handles - 125dB Siren Movement Detector - Door Knob Touch Sensor
4.2 out of 5 stars
1,285
1 offer from
£9.95
#8
Yale Locks HSA6060 Alarm Accessory - Remote Keyfob, Wireless, White, 15 x 75 x 137 mm [ Not compatible with EF-KF system ]
4.5 out of 5 stars
2,232
7 offers from
£12.13
#9
2 Pack of Burglar Alarm Door/Window Contact Detectors - Wired - White - Professional Quality
4.4 out of 5 stars
180
1 offer from
£7.79
#10
Yale AC-DC Sync Alarm Door/Window Contact - Sync Smart Home Alarm - 200m range
4.5 out of 5 stars
1,085
28 offers from
£18.59
#11
WiFi Door and Window Sensors,Tuya Smart Alarm with Free Notification APP Control Home Security Alarm System, No Hub Required,Compatible with Alexa, Google Home (1-pack)
3.9 out of 5 stars
1,281
1 offer from
£11.62
#12
Defender Ultra Slim Vibration Alarm 2 Pack - Window Alert Alarm Sensor Smash Glass Siren 130dB - Police Recognised Standards
4.2 out of 5 stars
97
1 offer from
£14.95
#13
SANJIE Wireless Door Open Alarm Sensor Chime for Home Security Business Shop Office When Entering,Shop Entry Chime System, 800FT Long Range,55 Ringtones 5 Volume Level 2 Receivers 1 Sensor
4.2 out of 5 stars
538
1 offer from
£26.98
#14
TECKNET Wireless Door and Window Open Sensor Alarm Chime, 1000Ft Operating Range 61 Chimes Adjustable Volume with Mute Mode LED Indicators Door Open Alert, Door Alarm Sensor for Home Store Office
4.4 out of 5 stars
1,309
2 offers from
£18.99
#15
4 Pack Door Alarms for Home Security, Window Door Alarms, Window Alarm Sensors, Door Alarms for Kids Safety,DIY Protection Burglar Bell Alarm for Home,Office
3.9 out of 5 stars
303
1 offer from
£9.99
#16
SONOFF SNZB-04P Zigbee Door Window Sensor, Send Alert to Your Smartphone for Home Security, Compatible with Alexa/Google Home, SONOFF Zigbee Bridge Required, Batteries Included
4.8 out of 5 stars
25
1 offer from
£14.90
#17
SimpliSafe Entry Sensor - Window and Door Protection - Compatible with SimpliSafe Home Security System
4.7 out of 5 stars
253
1 offer from
£14.99
#18
Personal Security Window & Door Alarm Bell | Wireless Sensor Door Window Burglar Alarm | Pack of 10
3.9 out of 5 stars
702
1 offer from
£15.99
#19
Ring Alarm Glass Break Sensor
4.5 out of 5 stars
435
1 offer from
£35.00
#20
LE Sircut LEMS-101-5, 5pcs Recessed Wired Security Door contact Sensor Alarm Magnetic Reed Switch, Magnetic Door Sensor,Magnet Near - Connect Circuit, Magnet Away - Break Circuit
4.5 out of 5 stars
35
1 offer from
£7.99
#21
Wireless Magnetic Door Sensor 600Ft Operating Range 55 Chimes Adjustable Volume with Mute Mode LED Indicators Door Entry Sensor Alarm Chime-Door Open Alert (Black-2-2)
4.1 out of 5 stars
132
1 offer from
£29.99
#22
KINOEE Bicycle Alarm, Anti-Theft Burglar Wireless Alarm with Remote Control for Bicycle/motorcycle/Electric Tricycle/car/door/window, Waterproof,113dB Super Loud Sound, 7 level Sensitivity
4.4 out of 5 stars
359
1 offer from
£12.49
#23
eufy Security, Entry Sensor, Detects Opened and Closed Doors or Windows, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor-use Only, Requires HomeBase S280 or HomeBase S380
4.6 out of 5 stars
2,334
1 offer from
£19.99
#24
Mengshen Wireless Vibration Alarm, Anti-theft Burglar Alarm for Bicycle/Bike/Motorcycle/Car/Vehicles/Door/Window, 110db Super Loud (Remote Control Included)
4.2 out of 5 stars
3,510
2 offers from
£12.59
#25
Fixget Pack of 8 Magnetic Door and Window Security Entry Alarm System WirelessMini Alarms Burglar Intruder Entry Warning Sensors White (Battery Included)
3.8 out of 5 stars
544
1 offer from
£13.99
#26
SECRUI Door Sensor Alarm for Home With Remote, 3 Packs Wireless Window Door Open Contact Burglar Chime Anti-Theft 2 Mode 120dB Loud Enough Sticky Pad Easy to Install for Door Safety Shop Security
4.3 out of 5 stars
23
1 offer from
£25.99
#27
2 Pack Window Alarm Ultra Slim Vibration Alarm 130dB Window Alarms for Security Shed Door Alarm Sensor Glass Break Alert Alarm Sensors for Home, Office, Dorm Room, RV
4.2 out of 5 stars
9
1 offer from
£11.49
#28
Door Alarm with Remote 2 Pack, Door Chime for Business When Entering, 130db Window Alarm Sensors for Kids Safety Home Security, Adjustable Volume
4.5 out of 5 stars
101
1 offer from
£21.59
#29
Panamalar Door Window Sensor Wifi Door Alarm System, Detects Opened and Closed Front Back Garage Door, Sends Alerts, Alexa Google Home Compatible, Smart Auto Switch on Lights Accessory
4.0 out of 5 stars
3,628
1 offer from
£19.99
#30
Mengshen Bicycle Alarm, Wireless Anti-Theft Burglar Security Alarm for Bike Motorcycle Car Mobility Scooter Vehicles Door Window, 113db Super Loud and Waterproof (Remote Control Included)
4.4 out of 5 stars
4,910
1 offer from
£14.99
#31
Bicycle Alarm,Wireless Waterproof Anti-Theft Bike Alarm with Remote Control,7 level Sensitivity Burglar Security Alarm, 113dB Super Loud Sound, for Bicycle/Motorcycle/Window/Electric Tricycle/Door
4.4 out of 5 stars
379
1 offer from
£12.88
#32
Ring Alarm Outdoor Contact Sensor
4.3 out of 5 stars
293
1 offer from
£49.00
#33
SECRUI Wireless Door Sensor Alarm for Home With Remote, Wireless Window Door Open Contact Burglar Chime Anti-Theft 2 Mode 120dB Loud Enough Sticky Pad Easy to Install for Door Safety Shop Security
4.4 out of 5 stars
52
1 offer from
£9.99
#34
Gebildet 5pcs Recessed Wired Security Window Gate Contact Sensor Alarm,Magnetic Reed Switch White,Magnetic Door Sensor,Magnet Near - Connect Circuit, Magnet Away - Break Circuit
4.2 out of 5 stars
1,481
1 offer from
£7.99
#35
DAYTECH Wireless Door Window Sensor Alarm, Door Open Chime, Entry Alert For Home Store Office Security, 300ft/100m Operating Range, Up to 80,000 Uses, 1 Receiver & 2 Sensors
4.5 out of 5 stars
11
1 offer from
£22.99
#36
Door Handle Alarm Window Sensor Alarm,120dB Door and Window Alarm,Door Alarm Window Alarms for Security Portable Door Alarm Defender Door Handle Alarm 2.76x5.51in for Apartment Home Security
3.9 out of 5 stars
194
1 offer from
£13.09
#37
Philips Hue Contact sensor
3.6 out of 5 stars
18
2 offers from
£65.91
#38
SONOFF SNZB-04 ZigBee Wireless Door Window Sensor, Send Alert to Your Smartphone for Home Security, Compatible with Alexa/Google Home, SONOFF Zigbee Bridge Required, Batteries Included
3.7 out of 5 stars
5,736
1 offer from
£12.99
#39
Ruspela Door Window Alarm, Loud Wireless Door Alarm Security Pin Panic Keypad For Home Office Garage Shed Home Security System
2.8 out of 5 stars
15
1 offer from
£9.99
#40
Meross Smart Door Window Sensor, Meross Hub Required, WiFi Mini Door Contact Sensor for Burglar Security Alarm and Home Automation, Real-Time Alert, Works with HomeKit, Alexa, Google Home, SmartThings
3.5 out of 5 stars
71
5 offers from
£10.54
#41
Magnetic Door/Window Alarm Doorbell, Wireless Security sensor Burglar Alarm System Loud 90 dB, Shed Garage Vibration Entry Warnning Detector, for Office/School/Hote/Hom/Store Security (10)
3.9 out of 5 stars
207
2 offers from
£13.99
#42
Eve Door & Window (Matter) - Smart Sensor for Doors & Windows, Automatic Control of Accessories, Privacy, Matter/Thread, for Apple Home, Alexa, Google Home, SmartThings, requires Thread Border Router
4.2 out of 5 stars
3,085
5 offers from
£25.99
#43
PATIKIL N.C. Wired Door Alarm Magnetic Contact Sensor, 4 Pcs 0-100V/0.5Amp Magnetic Reed Switch with Double Side Tape for Door Window, White
2 offers from
£7.99
#44
Sterling EA106 Magnetic Door or Window Contact Alarm, White
3.7 out of 5 stars
153
1 offer from
£3.99
#45
SANJIE Door Window Alarm with Remote for Home Security Kids Safety Demetia Patients SleepWalking,Door Window System for Shed Garage Burglar Anti-theft Alarms Security,4 Modes 0-120dB,Battery Included
4.2 out of 5 stars
634
1 offer from
£22.98
#46
SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub Mini to be Compatible with Alexa
4.3 out of 5 stars
657
4 offers from
£16.99
#47
Spacer | Riser Compatible with Ring Alarm Contact Sensor (0.50 Inch)
4.5 out of 5 stars
104
1 offer from
£20.05
#48
QWORK® 3Pcs MC-38 Wired Security Window Gate Contact Sensor Alarm -Normally Open - Surface Mount Magnetic Reed Switch Magnetic Door Sensor
4.2 out of 5 stars
87
1 offer from
£4.99
#49
sourcing map Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White MC-38
4.0 out of 5 stars
109
3 offers from
£5.59
#50
Wireless Home Security Alarm System DIY Kit - Magnetic Sensor - Guardian Protector - Window Glass Vibration Security Burglar Alarm for Homes, Cars, Sheds, Caravans, Motorhomes (6)
3.8 out of 5 stars
164
2 offers from
£10.99
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