Ring Alarm Contact Sensor (2nd Gen)
Z-Wave, Motion, Door/Window, Battery
£14.89
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Alarm door sensor
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Eufy Entry SensorAlarm, Door/Window£14.99
Netatmo Smart Door and Window SensorsWi-Fi, Alarm, Motion, Door/Window …, Battery£74.98
Aeotec Multipurpose SensorZ-Wave, ZigBee, Temperature, Door/Window, Vibration£26.93
Yale Sync IA-320 Smart Alarm Kit & Door and Window Sensor Bundle, White£9,999.00
10m Wireless PIR Motion Detector Sensor Alarm Wall Mount Visitor Shop Door Chime£22.04
Defender Door Handle Alarm - Wireless Hanging Intruder Alarm for Metal Door Handles - 125dB Siren Movement Detector - Door Knob Touch Sensor£9.95
N/A MC-31 Wired Surface Mounting No NC Door Contact Sensor Magnetic Alarm Reed Switch White£9.21
Panamalar Door Window Sensor Wifi Door Alarm System, Detects Opened and Closed Front Back Garage Door, Sends Alerts, Compatible with Alexa Google Home, Smart Auto Switch on Lights Accessory£19.98
Broco Door Sensor,Window Magnetic Contact Wired Detector Switch for Home Garage Alarm Security£12.39
WiFi Door Sensor 2-Pack, Koogeek Door and Window Alarm Remote Monitoring with Alexa Google Home Security Home iOS and Android No Hub Required Smart Home£29.99
Boquite 5pcs Magnetic Reed Switch, Recessed Wired Door Window Sensor Magnetic Switch Home Alarm System for Window and Wooden Door, Normally Closed NC Type£9.92
Boquite Magnetic Detecting Switch Set, 433MHz Door Magnetic Contact Wireless Sensor Detector Switch for Home Garage Alarm Security, Easy Installation£11.46
Heayzoki Home Security Alarm System Burglar Intruder Alarm Simple Kit, Wireless PIR Motion Sensor Alarm Password Home Security Keypad Remote Infrared Detectors, for Front Door, Back Door, Garage£16.95
Home Security Door & Window Sensors 120DB Door Handle Alarm Touch Sensor Doorhandle Anti-theft Hanging Vibration Alarm Window Burglar Alert System for Home Office Hotel£11.99
LNIEGE Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch (2PCS)£2.99
Magnetic Door Switch Door Sensor, Magnetic Switch, Window Alarm Sensors for Window for Wooden Door£2.89
GRTVF Wireless Video Doorbell, 720P WIFI Smart Security Doorbell Door Phone IR Night Vision Camera Support Infrared Human Body Sensor, Alarm Function£85.99
Door Window Magnetic Contact Wired Sensor Detector Switch for Home Garage Alarm Security£9.39
JKHK Bicycle Alarm, 113dB Super Loud Intelligent Wireless Vibration Alarm with Remote, Waterproof Security Alarms Vibration Sensor, for Bicycle/Motorcycle/Door Window (Remote Control Included)£14.95
Raguso 1pair 20m Infrared Photoelectric Sensor Single Beam Alarm Photoelectric Detector for Detector Home Door Security System£14.19
ruiruiNIE MC-31 Wired Door Window Sensor Magnetic Switch For Home Alarm System Detector MC-31 Wired Door Window Sensor White£10.49
Door Alarm Sensor, 120dB Window Alarm Anti-theft Door Handle Alarm Alert for Apartment Home Security£9.99
Brussels Wireless Home Security Door Window Burglar Alarm Entry Alarm Warning System Magnetic Sensor for Protecting Kids Safety, Home Random£2.09
GOTOTOP Magnetic Detecting Contacts Door Window Magnetic Contact Wired Sensor Detector Switch for Home Garage Alarm Window Door Security(4.2 x 1.5 x 0.4in)£11.58
Belissy Alarm Beam Sensor Infrared Door Alarm, 1pair 20m Simple Beam Alarm Photoelectric Infrared Sensor Detector Home Door Security System£14.89
BYFRI Wireless Door Bell Shop Guest Welcome Device Visitor Entry Alert Door Chime Infrared Motion Sensor Home Anti-theft Alarm£12.03- Magnetic Contact Switch-Door and Window Electromagnetic Contact Type Wired Sensor Detector Switch for Home Garage Alarm Security£12.29
Hopcd Motion Sensor Alarm, Wireless PIR Motion Sensor Alarm Password, Home Security Keypad Remote Infrared Detectors for Front Door, Back Door, Garage, Shed£12.54
Door Window Magnetic Contact Sensor Detector Switch for Home Alarm Security£8.99
Wireless Window Door Entry Burglar Security Alarm System Magnetic Sensor£2.99
ZHITING 5 Pcs MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White£10.99
Entweg Single Beam, ABO-20 Waterproof Active Photoelectric Single Beam Infrared Sensor Barrier Detector for Gate Door Window Burglar Alarm System£12.99
Entweg Single Beam, 2 Pair of ABO-20 Waterproof Active Photoelectric Single Beam Infrared Sensor Barrier Detector for Gate Door Window Burglar Alarm System£19.99
Touch Sensor 120dB Ultra Loud Wireless Anti Theft Security Alarm Door Knob Alarm Sensor for Hotel£12.79
WIFI Door Sensor,WiFi Door Alarm Window Sensor Detector Smart Home Security Tuya SmartLife App Control Compatible Amazon Alexa Google Assistant IFTTT£13.91
10X WIRELESS Home Window Door Burglar Security ALARM System Magnetic Sensor£11.99
5-piece wireless entrance door and window burglar, security alarm system, magnetic sensor£8.95
kdjsic Wireless Window Door Burglar Security Warning Alarm System Magnetic Sensor-5#£12.85
Demeras WIFI Smart Door Window Alarm Sensor Wireless Remote Control with Remote Monitor App Notifications Open Reminder£16.19
5pcs MC-38 Recessed Wired Door Window Sensor Magnetic Switch Home Alarm System Door & Window Sensors Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White£8.39
Panamalar Door Window Sensor Smart WiFi Door Alarm System, Detect Opened and Closed Front Back Garage Door, Sends Alerts, Alexa Google Home Compatible, Smart Home Automation Switch on Lights Accessory£19.99
Door Window Sensor Wired Photoelectric Vibration Alarm Sensor Detector Burglar Alarm for Home Security£8.89
Goshyda Wireless Motion Sensor Alarm, Password Home Security Keypad Remote Infrared Detectors Security System for Front Door, Back Door, Garage, Shed, Outbuildings etc.£12.11
Freezer Door Alarm When Left Open, 3/15/30/60 Seconds Adjustable delay Wireless Fridge Alarm, 4-in-1 Door Sensor…£31.51
Photocell Beam Sensor, Simple Single Beam Infrared Sensor Barrier Detector for Gate Door Window Burglar Alarm System(Black)£10.08
Ashley GAO Door Alarm Alert Wireless Remote Door Alarm Windows Open Alarms Magnetic Security Sensor Pool Door Alarm£1.19
Home Wireless Burglar Security Alarm System Window Door Entry Magnetic Sensor£3.69
OocciShopp Wireless Music Door Bell,Wireless Music Door Bell Guest Welcome Chime Alarm PIR Motion Sensor For Shop Entry Security Infrared Detector Doorbell(White)£8.00
Driveway Alarm System, Door Beam Sensor Alarm Security System Beam Barrier Active Detection for Home Security System Indoor Outdoor£15.39
Wireless Doorbell Store Shop Welcome Motion Sensor Infrared Detector Induction Alarm Door Bell Doorbell£16.60
Smart Wifi Door Window Sensor Home Rechargeable, Wireless Door Sensor, Door and Window Sensor Alarm, 2.4g Wifi Wireless Transmission App Remote Control For Home Security£13.84
Yivibe Touch Sensor Security Alarm Easy Installation 120dB Security Alarm, Small and Portable Door Alarm, for Home Dorms Cabinets£4.95- Wireless Doorbell Store Shop Welcome Motion Sensor Infrared Detector Induction Alarm Door Bell Doorbell£12.19
Prasacco M5 32 Songs Wireless PIR Motion Sensor Door Bell Shop Visitor Alert Chime Alarm Burglar Doorbell for Office/Home Security£7.49
OBEST Motorcycle Bicycle Alarm,Waterproof Anti-Theft Bike Security Sensor Alarm with Remote , 113 dB USB Long Battery Life, Wireless Alarm for Motorcycle, Scooter, Door Window, Electric Car£19.99
Fesjoy Wireless Door Bell Shop Guest Welcome Device Visitor Entry Alert Door Chime Infrared Motion Sensor Home Anti-theft Alarm, Indicator Light Doorbells Easy Install for Home （White）£13.98
Funien Door Sensor, 433Mhz Wireless Wifi + Gsm Auto-Dial Alarm Security System Lcd Display Door Sensor Pir Motion Sensor Phone App Remote Control£61.99
Baugger Door Sensor, Smart Home Burglar Security Alarm System Tuya 433Mhz Wireless Wifi + Gsm + Gprs 3G Sms Auto-Dial Alarm Security System Lcd Display Door Sensor Pir Motion Sensor£73.99
Door Alarm, Security Wireless Door Window Contact Sensor 100DB Alarm Sensor 3 Modes Door Open Sensor Garage Alarm Chime Burglar Anti-Theft for Kids Safety Home Shop Security£8.99- Joyzan Personal Security Window and Door Alarm Wireless Burglar Security Magnetic Sensor Anti-Theft Alarm Easy Installation Window Door Bell for Home Garage Apartment Dorm RV Office£4.99
Welcome Sensor Infrared Welcome Door Bell Home Motion Welcome Welcome Entry Alarm Infrared Sensor Sound Player power on, battery replacement£10.99
Infrared Photocell Beam Sensor Automatic Gate, Motion Detector for Door Window Burglar Alarm System Sliding Gate Opener Accessory Photocell Beam Sensor£10.99
Happyyami 2 pcs Door Sensor Detector Smart Wireless Window Sensor Alarm Bike Alarm Water Detectors for Home£12.39
01 02 015 Door Sensor, ABS Material Linkage Alarm Dual Induction Window PIR Detector for Home for Office£9.85
01 02 015 Wireless Door Alarm Sensor, Household Alarm Plug And Play for Office Store for Home Business for The Elderly Children£9.47
Window Door Alarm, Home Security Wireless Magnetic Sensor Burglar Mini Anti Theft DIY for Home Office Security GSM Alarm System£30.89
Door Alarm, Burglar Security Vibrate Alarm Sensor Wireless Window Alarm, Window Door Alarm 120dB for Doors£6.99
Door Window Alarm Sensor, Mini Door Alarm Window Alarms Wireless Home Security Alarm System Door Lock Magnetic Sensor, for Apartment Office Business Burglar Protection£5.09- Magnetic Sensor Wireless Burglar Security Alarm System Home Window Door Entry Magnetic Sensor£7.69
WIFI Smart Door Window Alarm Sensor Remote Control for Home Security Easy to Operate Secure and Dependable Long Lasti£10.59
replacement parts 4pcs Unembedded Wired Security Window Door Sensor Alarm Reed Magnetic Switch White RC-33£34.08
replacement parts 3pcs Unembedded Wired Security Window Door Sensor Alarm Reed Magnetic Switch White RC-33£30.02
electronic switch NC Recessed Wired Security Window Door Sensor Alarm Magnetic Reed Switch Brown RC-36 5pcs£33.72
replacement parts 30pcs MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White£47.96- electronic switch MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White 2pcs£25.51
electronic switch 3pcs MC-31 Surface Mount Wired NO+NC Door Sensor Alarm Magnetic Reed Switch White£34.63
electronic switch Recessed Wired Security Window Door Sensor NC Alarm Magnetic Reed Switch White RC-36 2pcs£27.57- replacement parts 2pcs MC-31 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White£28.71
replacement parts 5pcs Recessed NC Security Alarm Door Window Sensor Magnetic Reed Switch£33.47- replacement parts MC-31 Surface Mount Wired NO+NC Door Sensor Alarm Magnetic Reed Switch White£25.54
electronic switch NC Recessed Wired Security Window Door Sensor Alarm Magnetic Reed Switch White RC-33 10pcs£34.47
NEDIS Door Entry Alarm with Motion Sensor & 80 dB Chime, Wall & Ceiling Mount, White£12.23
Feel Safe Outdoors as well as at Home with the 2 in 1 Super Loud Personal Alarm with LED Torch which also converts to a Window Alarm Door Alarm or Car Alarm with UK Personal Safety Guide£12.61
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£13.42
Meross Smart Door Window Sensor, Mini Contact Sensor for Security and Home Automation, WiFi Alarm System, Real-Time Alert, Works with HomeKit, Alexa, Google, SmartThings, Meross Hub Included Start Kit£19.99
3PCS SONOFF DW1 Sensor 433Mhz Door Window Alarm Sensor Wireless Automation Q1Q1£14.89
Brown Magnetic Door Sensor Contact - For All Intruder / Burglar Alarm Systems£3.43- Home Entry Burglar Security Door Window Alarm System Magnetic Contact Sensor£3.24
- Tuya Door Window Detector WiFi APP Remote Control Security Alarm Sensor£14.50
- 1-10x Wireless Home Shop Security Door Window Entry Alarm System Magnetic Sensor£6.04
Wifi Smart Door Window Sensor Home Security Alarm Sensor Detector Voice Control£12.25- 1/2/4/8 Wireless Burglar Security Alarm System Magnetic Sensor Home Window Door£7.94
- 1-10Pcs Wireless Magnetic Door Sensor Home Security Window Entry Alarm System£38.02
- 1/2/4pcs 433MHz Window/Door Alarm Sensor For HOSA HAMA Smart Home Security UK£8.95
- Door Alarm System Safety System Movement Warning Device Sensor RC 105 DB Siren£16.66