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Security System Sensors

Shop the best prices on 11,607 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Gze, Dirtypigs and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to United Kingdom.

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1,505 - 1,536 of 3,200
Power failure alarm, 115 decibels high decibel, 1 piece, home automation detection alarm device
From £17.95
Door and Window Sensor, Real-time Alarm, ABS Material, Smart Home Security Sensor
From £39.95
TV Simulator with AC Adaptor, Anti-Burglar Theft Deterrent Home Security Timer and Sensor, EU Plug
From £16.43
Infrared Sensor Switch No Contact Contactless Switches Door Release Exit Button with LED Indication
From £6.95
Door and Window Security Sensor, Magnetic Trigger, 2-Piece Set, Swimming Pool Door Anti-Opening Alarm,xx
From £34.36
Alarm Magnetic Contact for Roller Shutter Garage Door Sensor NF
From £20.66
4Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation-SNNGV
From £38.11
Freezer Door Alarms, Window Security Alarm, Wireless Fridge Alarm, 4 In 1 Door Sensor Doorbell Loud Door Opening Alarm 108db
From £9.96
Door Open Reminder Magnetic Installation Continuous Alarm Mode Refrigerator Door Unclosed Alarm Device
From £20.65
Mini GSM Audio Interceptor | Dual Microphone Acoustic Alarm Device | Two-way Audio | Portable Molded Plastic | Long Standby
From £22.63
5X 2.4GHz Wireless TTLOCK Door Sensor Door Contact Detection Windows Open Close Status Works with TTLOCK App Smart Locks
From £43.95
4 in 1 Door Window Alarm Sensor | Timing & Loud 108dB | Easy Install for Freezer Door
From £16.49
2026 2 Sets Wired Magnetic Switch Alarm Sensor for Overhead Garage Doors with Armored Wire Leads & Adjustable Bracket
From £20.82
Smart WiFi Door and Window Alarm Sensor | Remote Anti-Theft Alarm
From £31.10
DOBERMAN SE-0137 4 in 1 Household Anti-theft Door and Window Magnetic Spring Sensor Super Loud Simple Alarm Set Generic1
From £33.95
Wireless Thread Light Detection Sensors Brightness Adjustment Low Power Alerts System Light Sesnor for Home Automation Multicolor
From £29.93
Garage Door Bracket for Ring Alarm Contact Sensors 2nd Gen (Sensor Not Included), Garage Door Security Accessory
From £5.94
Garage Door Bracket for Ring Alarm Contact Sensors 2nd Gen (Sensor Not Included), Garage Door Security Accessory
From £5.94
WiFi Door Sensor Alarm 2 Pack, 90dB Smart Door Alert with App Notifications, Works with Alexa and Google Home
From £28.79
Wired Magnetic Door Window Alarm Sensor, Contact Switch Detector with Large Magnetic Gap, Security for Home Garage, 1 Piece
From £7.39
2025 Latest Model Perimeter Trip Alarm, Trip Alarm 12 Gauge Camping Trip Wire
From £35.95
Infrared Alarm Detector with Sound Light Alarm, Portable Privacy Protection Device for Bathroom, Hotel, Bedroom
From £13.74
Wireless WiFi Temperature and Humidity Sensor with Push Notification, Battery Operated for Home Office Warehouse, 1 Pack
From £15.32
Magnetic Window and Door Sensor, Entry Alarm, Compatible with Homey and SmartThings, White, 1 Pack
From £11.94
Wireless Door Window Sensor, Multi-Purpose Security Alarm Detector Compatible with Smart Life
From £17.99
Smart WiFi Door Sensor with App Notifications, Magnetic Open/Closed Detector for Home Security
From £20.39
Single Beam Infrared Detector, 20m Detection, Anti-theft Alarm Sensor for Doors Windows Fences, 1 Pair
From £17.22
Wireless Door Sensor with App Notification, Magnetic Detector for Doors, Windows, Cabinets & Drawers, 2 Pack
From £26.39
Wireless ZigBee Door Window Sensor for Smart Home Security Alerts
From £20.39
2 Sets Recessed Magnetic Switch DC12 to 24V Aluminum Alloy NC Wired Door Sensor Window Reed Switch compatible with Alarm System Acce Walkbee A B
From £35.57
Smart Door Window Sensor Detector with WiFi Zigbee Tuya Smart Life App
From £20.39
WiFi Door Sensor with Phone Alerts, Easy Installation, No Hub Required
From £16.79