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Security System Sensors

Shop the best prices on 8,536 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Dirtypigs, Blue Zoo and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to United Kingdom.

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33 - 64 of 3,200
2x Door/ Window Tuya Wifi Sensor Connection Smart Mini Door Sensor Security Work With Smart Life App
£19.95
Zigbee Home Automation Scene Security Alarm Battery Powered Temperature Sensor Wireless Smart
£31.95
Tuya Smart Vibration Sensor ZigBee Tuya Sensor Monitor App Control Security Protection Zigbee Senso
£9.95
Embedded Tuya Wifi/zigbee Smart Human Presence Detector Millimeter Wave Radar Detection Sensor Support Intelligent Linkage
£40.95
2026 new Garage Door Bracket for Contact Sensors 2nd Gen (Sensor Not Included), Garage Door Security Accesso
£13.95 Save £12.00 RRP: £25.95
2026 NEW Smart Wifi Door Magnetic Detector Wifi Door and Window Sensor Door Magnetic Switch Alarm Anti-Theft
£18.95 Save £12.00 RRP: £30.95
433mhz Door Magnetic Contact Wireless Sensor Detector Switch For Home Garage Alarm Security - White (battery Not Included) - 1 Piece
£5.95 Save £12.00 RRP: £17.95
Single Beam Alarm Photoelectric Infrared Detector Home Security System Door
£139.00 Save £100.00 RRP: £239.00
Donemore Magnetic Smart Door Sensor, Home Graffiti WiFi Door and Window Intrusion Detection Alarm, Real Time Notification App
£11.95 Save £7.00 RRP: £18.95
TUYA Zigbee Temperature Sensor APP Remote Monitor Tuya Waterproof Temperature Sensor Smart Home 1M
£12.95 Save £6.00 RRP: £18.95
10pcs Magnetic Reed Switch Door Window Security Alarm System Normally NC NO Contact Switches for Enhanced Home Safety B
£13.95 Save £5.00 RRP: £18.95
5 Pcs Mc-38 Wired Door Window Sensor Magnetic Switch For Home Alarm System,When Sensor Together,Normally Closed Nc
£5.95 Save £7.00 RRP: £12.95
Tuya Smart Home ZigBee Temperature and Humidity Sensor Indoor Thermometer Monitor Works for Alexa Google Smart Life
£8.95 Save £10.00 RRP: £18.95
5 Pcs Mc-38 Wired Door Window Sensor Magnetic Switch For Home Alarm System,When Sensor Together,Normally Closed Nc
£12.95
Tuya Smart Door Sensor Wireless WiFi Door Window Detector Smart Linkage Window Door Contact Sensor for Home Security
£9.95 Save £12.00 RRP: £21.95
Magnetic Door Window Contact Sensor Alarm Wired-Security Home Burglars Alarm NO/NC Magnetic Switchs Easy to Install
£11.95 Save £1.00 RRP: £12.95
Sensor Infrared Safety Beam P ocell Detector for Garage Gate / Swing / Sliding Door Access System
£8.95 Save £9.00 RRP: £17.95
Light Sensor DC 5V 12V USB Wire Day Auto-on Light Sensor Cable for Home Security and Lighting
£5.95 Save £6.00 RRP: £11.95
Glass Break Sensor Detector for Alarm System Wired Glass Break Sensor
£6.95 Save £7.00 RRP: £13.95
WIFI TUYA Smart Window Door Sensor Wireless Connection Door Detector Door Open / Closed Alarm- System
£7.95 Save £8.00 RRP: £15.95
4PCS Tuya ZigBee Smart Vibration Sensor: Real-Time Monitoring for Doors & Windows, Alarm System for Smart Homes
£46.95
Automatic Toilet Flush Button Smart Flusher ExternalInfrared Sensor
£10.95
2Pack Freezer Door Alarm,3/15/30/60 Seconds Wireless Fridge Alarm,4 in 1 Door Sensor Doorbell Door Open Alarm Loud108dB
£17.95 Save £18.00 RRP: £35.95
Mengshen 2-pack magnetic door window alarms with 110dB alert for home security and DIY installation
£36.95 Save £7.00 RRP: £43.95
Anti-Theft Alarm for Refrigerators and Freezers with Door Window Left Open Reminder and 30-Second Beep Alert
£31.95
Wired-Magnetic Door Window Contact Sensor Waterproof Door Window Sensors Detector for Home Security Alarm System Multicolor
£14.95
Tuya Smart ZigBee 3.0 Smart Temperature and Humidity Sensor Battery Powered Security with Tuya Smart
£18.95
Vibration Alarm Security Device Export
£43.95 Save £10.05 RRP: £54.00
Freezer Door Alarm When Left Open,fridge Door Alarm With Delay Upgrade 3/15/30/60 Seconds Security, Adjustable Delay Wireless Fridge Alarm Door Open C
£59.00 Save £15.00 RRP: £74.00
Wireless Door Opening Contact Sensor Alarm with Buzzer
£46.95 Save £12.05 RRP: £59.00
2Pcs Smart WiFi Vibration Sensor Alarm Wireless Vibration Detector Alert Real-Time Activity & Shock
£16.95 Save £4.00 RRP: £20.95
Wifi Temperature Sensor Tuya Thermometer Detector Digital Display Home Smart Life App Alert Freezer Water Alarm Eu Plug
£69.00