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Shop the best prices on 11,296 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on ZENGO, Aura, GreenZech and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to United Kingdom.

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449 - 480 of 11,296
SONOFF DW2 Wireless Door Sensor: Smart Home Security Detector with Alexa Compatibility
£19.75 Save £7.20 RRP: £26.95
Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Sensor Alarm White- (10 Sets)
£8.95 Save £40.05 RRP: £49.00
Smart Bluetooth Mesh Brightness Thermometer Light Temperature Humidity Detector Sensor Tuya Smart Ap
£10.95 Save £2.00 RRP: £12.95
Wireless Infrared Gate Beam Sensor IP55 Waterproof Anti Theft Alarm for Automatic Station Doors Security Detection System
£21.95 Save £11.00 RRP: £32.95
Door And Window Alarm, 2 Remote Controls, 130db Siren, Adjustable Volume, 5 Function Modes Alarm, Magnetic Security Sensor, Wireless Home Alarm For Ho
£25.20
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC with Adjustable Bracket
£9.95 Save £3.00 RRP: £12.95
10pcs Magnetic Switch Door Window Security Alarm System Normally NC NO Contact Switches for Enhanced
£12.95 Save £3.00 RRP: £15.95
Wireless Door and Window Vibration Sensor Alarm 125dB Glass Breakage Anti-Theft Sensor, Easy Install
£8.95 Save £2.00 RRP: £10.95
Fishing Infrared Sensor Alarm for Day and Night Time Fishing Camping Hunting
£28.95
Door Anti Burglar Protection Kit 911770 Door Security Device Replacement for Peugeot Boxer
£28.79
Door Sensor Alarms Home Security Anti Theft Burglar Door Window Entry Open Sensor Alarms for Home Apartment
£8.95 Save £3.00 RRP: £11.95
Door And Window Alarm, 2 Remote Controls, 130db Siren, Adjustable Volume, 5 Function Modes Alarm, Magnetic Security Sensor, Wireless Home Alarm For Ho
£22.95 Save £36.05 RRP: £59.00
10 Pack Window Alarm Wireless Door Magnetic Sensor Alarm For Home Security System, Pool Door Alarm Edition 0922
£23.95 Save £30.05 RRP: £54.00
Proximity Switch Universal Approach Sensor Waterproof 3 Wire Accessory DC6?36V M18TOSD?04?503 NPN Normally Open
£48.95
Door Opening Sensor Wireless Time Delay Door Alarm Door Sensor Door and Window Security Alarm Home S Edition 0710
£4.95 Save £16.00 RRP: £20.95
Glass Break Detectors, Window Alarm With 125 Db Alarm, Glass Vibration Sensor Alarm(2 Pcs) Banban SZRH
£24.95 Save £49.05 RRP: £74.00
Freezer Door Alarm When Left Open, Safety Window Alarm, 3/15/30/60 Seconds Adjustable Delay Wireless Fridge Alarm, 4-in-1 Door Sensor Chime Door Open
£20.95
2026 Wireless Infrared Gate Beam Sensor Anti Theft Alarm IP55 Waterproof for Station Automatic Door
£36.78 Save £36.78 RRP: £73.56
2026 10W Zinc Alloy Magnetic Reed Switch NC Door Window Contact Sensor for Garage, Warehouse, Shop 100V
£15.88 Save £15.87 RRP: £31.75
2025 Wireless Door Window Sensor for Smart Home Security, Entry Detector with Alarm, Magnetic Contact Switch for Doors and Windows
£18.73 Save £18.73 RRP: £37.46
White Wired Security Door and Window Sensor Alarm with Magnetic Switch (10 Sets)
£12.31 Save £7.39 RRP: £19.70
2025 Fake TV Simulator with AC Adaptor Anti-Burglar and Theft Deterrent Home Security and Sensor,EU Plug
£15.73 Save £15.73 RRP: £31.46
Smart Motion Sensor,wifi Wireless Security Alarm,with Free Notification
£32.95 Save £16.00 RRP: £48.95
1Pack Smart WiFi Door Sensor, Wireless Door Window Detector Alarm, Smart Door Window Contact Sensor for Home Security.
£25.95 Save £13.00 RRP: £38.95
Door Window Sensor Detector Wireless Open Contact Sensor WiFi APP Timer Magnet Back Adhesive Sharing Security Sensor Alarm for ZigBee for Tuya
£10.98 Save £10.99 RRP: £21.97
Smart Wireless Sensing Doorbell Waterproof Doorbell Security Alarm Kit for Home Yard with 1 Alarm 2 Sensor 110‑240V US
£29.32 Save £17.59 RRP: £46.91
Inductive Cylindrical LongRange Proximity Sensor With Wire Cable Detection Distance
£37.95 Save £21.05 RRP: £59.00
Wireless Door Opening Contact Sensor Alarm Buzzer
£56.33 Save £16.89 RRP: £73.22
Fake TV Simulator with AC Adaptor for Anti-burglar and Theft Deterrent Home Security - Timer and Sensor (5V British Standard Plug Type)
£22.01 Save £51.83 RRP: £73.84
Exquisite CoRui Tuya Smart ZigBee Door Window Sensor Smart Home APP Remote Alarm Portable GPS Tracker Key Finder Tr-Und Fenstersensoren
£10.95 Save £11.00 RRP: £21.95
Infrared Beam Detector Burglar Ir Alarms Sensor Alarm System (PrettyJ)
£6.82 Save £3.07 RRP: £9.89
Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Sensor Alarm White- (10 Sets) unbrand
£10.95